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MJOLNIR Powered Assault Armor/Mark IV: Difference between revisions

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{{Era|UNSC|HCW|Post}}  
{{Status|Canon}}
{{Armor Infobox
{{Armor infobox
|image=[[File:MJOLNIR MARK IV ARMOUR.png|350px]]
|image={{tabcontainer|title1=GEN2|content1=[[File:H5G-MarkIV.png|300px]]|title2=GEN1|content2=[[File:Douglas-042.png|300px]]}}
|manufacturer=[[Materials Group]]
|manufacturer=[[Materials Group]]
|testsite=[[Damascus Testing Facility]]
|testsite=[[Damascus Testing Facility]]
|type=[[MJOLNIR Powered Assault Armor]] GEN1
|type=[[MJOLNIR Powered Assault Armor]]
|role=General combat
|role=General combat
|weight=
|weight=
|features=
|features=
|hideb=yes
}}
}}
{{Quote|You're the only ones who can use them, Petty Officer. Who else could we give them to?|[[Catherine Halsey|Doctor Catherine Halsey]] to [[John-117]].<ref name="for115"/>}}
{{Quote|You're the only ones who can use them, Petty Officer. Who else could we give them to?|[[Catherine Halsey|Doctor Catherine Halsey]] to [[John-117]].{{Ref/Reuse|for115}}}}


The '''Mark IV MJOLNIR Powered Assault Armor''' was (despite its name) the first version of the [[MJOLNIR Powered Assault Armor]] series. The suit was issued to [[SPARTAN-II program|Spartan-II commandos]] on [[2525#November|November 27, 2525]],<ref>'''Halo: The Fall of Reach''', ''page 113'' ''page 136'' (2010 edition)</ref> and was in service until it was replaced by the [[MJOLNIR Powered Assault Armor/Mark V|Mark V]] on [[2551|November 24, 2551]].<ref>[http://halo.bungie.net/News/content.aspx?type=topnews&link=BWU_012910 '''Bungie.net''': ''Bungie Weekly Update: 01.29.10'']</ref><ref group="note">''Halo: The Fall of Reach'' states that the Mark V was issued on August 29, 2552. However, the aforementioned Weekly Update and Dr. Halsey's personal journal retcon this, instead stating that the Mark V was issued on November 24, 2551. The test performed by John-117 was intended to gauge the pairing of the Mark V suit with a piggy-backed AI, not to observe the suit's performance ''per se''. ''Halo Waypoint''<nowiki>'</nowiki>s ''MJOLNIR Project 2'' video erroneously presents the date given in the novel as valid.</ref> A hybrid variant could still be requisitioned by Spartan personnel as late as [[2558|October 2558]], albeit upgraded to function with the [[MJOLNIR Powered Assault Armor (GEN2)|MJOLNIR [GEN2]]] suite, and is notably still used by select Spartan-IIs.<ref name="H5G">'''[[Halo 5: Guardians]]'''</ref>
Despite its name, '''MJOLNIR Powered Assault Armor Mark IV''' was the first production model of [[MJOLNIR Powered Assault Armor]]. The suit was issued to [[SPARTAN-II program|Spartan-II commandos]] on [[2525#November|November 27, 2525]],<ref name="First Issue">'''Halo: The Fall of Reach''', ''page 113'' ''page 136'' (2010 edition)</ref> and was in service until it was replaced by the [[MJOLNIR Powered Assault Armor/Mark V|Mark V]] on [[2551|November 24, 2551]].<ref>[http://halo.bungie.net/News/content.aspx?type=topnews&link=BWU_012910 '''Bungie.net''': ''Bungie Weekly Update: 01.29.10'']</ref>{{Ref/Note|''Halo: The Fall of Reach'' states that the Mark V was issued on August 29, 2552. However, the January 29, 2010 Bungie Weekly Update and Dr. Halsey's personal journal retcon this, stating that the Mark V was issued on November 24, 2551. In this context, the test performed by John-117 was intended to gauge the pairing of the Mark V suit with a piggy-backed AI rather than to observe the suit's performance ''per se'', as presented in the novel. ''Halo Waypoint''<nowiki>'</nowiki>s ''MJOLNIR Project 2'' video, released in 2011, erroneously presents the date given in the novel as valid.}} A hybrid variant could still be requisitioned by Spartan personnel as late as [[2558|October 2558]], albeit upgraded to function with the [[MJOLNIR Powered Assault Armor (GEN2)|MJOLNIR [GEN2]]] suite; such suits are notably still used by select Spartan-IIs.<ref name="H5G">'''[[Halo 5: Guardians]]'''</ref> With the advent of the [[MJOLNIR Powered Assault Armor (GEN3)|MJOLNIR [GEN3]]] in [[2559]], the Mark IV was upgraded to be fully compatible with the new platform, and it can be requisitioned by Spartan personnel as late as [[2560]].{{Ref/Game|Id=HI|HINF|Armor customization (Halo Infinite)|Armor Hall|Detail=Mark IV - Helmet Description|Quote=The Halsey-refit Mark IV helmets are masterpieces of military engineering. Each is a refurbished Covenant War-era relic, stripped down and packed with the latest Mjolnir technology.}}{{Ref/Game|Id=HIAHCoreMarkIV|HINF|Armor customization (Halo Infinite)|Armor Hall|Detail=Mark IV - Armor Core Description|Quote=Stocks of Mark IV armor recovered from the Damascus archives have now been rebuilt under the direction of Dr. Halsey. These refits are fully compatible with official GEN2 and GEN3 standards but Halsey has her own ideas about the next step for Mjolnir.}}


==Introduction==
==Introduction==
[[File:HM-MarkIV.jpg|200px|thumb|left|Diagram of the Mjolnir Mark IV.]]
[[File:HM-MarkIV.jpg|200px|thumb|left|Diagram of the Mjolnir Mark IV.]]
Developed parallel to the SPARTAN-II program<ref name="Sybex">'''Sybex [[Halo: Combat Evolved (PC port)]] Strategy Guide''', ''page 5''</ref> by the [[Office of Naval Intelligence]]'s [[Materials Group]], the MJOLNIR powered assault armor was a radical redesign from previous large bulky exoskeletons, streamlining their design into a compact suit of armor practical for use in the field. The brainchild of Dr. Catherine Halsey, the MJOLNIR armor represented her vision of creating a slim powered exoskeleton capable of taking full advantage of the physical capabilities of a SPARTAN-II.<ref name="Sybex"/> Planning and research for the revised MJOLNIR battlesuit began in 2511<ref name="halsey1">'''[[Dr. Halsey's personal journal]]''' ''July 30th, 2511 entry''</ref> alongside the SPARTAN-II project; over the course of fourteen years its development gave birth to many new technologies that would later see major adoption throughout the military.  
Developed parallel to the SPARTAN-II program<ref name="Sybex">'''Sybex [[Halo: Combat Evolved (PC port)]] Strategy Guide''', ''page 5''</ref> by the [[Office of Naval Intelligence]]'s [[Materials Group]], the MJOLNIR powered assault armor was a radical redesign from previous large, bulky exoskeletons, streamlining their design into a compact suit of armor practical for use in the field. The brainchild of Dr. Catherine Halsey, the MJOLNIR armor represented her vision of creating a slim powered exoskeleton capable of taking full advantage of the physical capabilities of a SPARTAN-II.{{Ref/Reuse|Sybex}} Planning and research for the revised MJOLNIR battlesuit began in 2511<ref name="halsey1">'''[[Dr. Halsey's personal journal]]''' ''July 30th, 2511 entry''</ref> alongside the SPARTAN-II project; over the course of 14 years, its development gave birth to many new technologies that would later see major adoption throughout the military.  


MJOLNIR is a sealed system capable of [[extra-vehicular activity]] or operations in toxic atmosphere and vacuum. It is hardened against [[electromagnetic pulse]] and radiation, and has filters that are completely effective at removing toxins and bacteria from local atmosphere.<ref name="xbox">'''[http://www.xbox.com/en-US/games/h/halo/spotlight2.htm Master Chief's Armor: An Overview]'''</ref><ref name="FoR120">'''Halo: The Fall of Reach''' ''page 120'' ''page 143'' (2010 edition)</ref>
MJOLNIR is a sealed system capable of [[extra-vehicular activity]] or operations in toxic atmosphere and vacuum. It is hardened against [[electromagnetic pulse]] and radiation, and has filters that are completely effective at removing toxins and bacteria from local atmosphere.<ref name="xbox">'''[http://www.xbox.com/en-US/games/h/halo/spotlight2.htm Master Chief's Armor: An Overview]'''</ref><ref name="FoR120">'''Halo: The Fall of Reach''' ''page 120'' ''page 143'' (2010 edition)</ref>


The armor's outer shell is composed of a multilayer alloy of remarkable strength which has been augmented with a refractive coating capable of dispersing a limited amount of Covenant [[Directed energy weapon|energy weapon]] impact.<ref name="xbox"/><ref name="FoR">'''Halo: The Fall of Reach''' ''page 114-115'' ''page 137'' (2010 edition)</ref> Underneath the alloy shell is a thick black armored titanium nanocomposite bodysuit. Underneath that layer is a gel-filled layer. The gel layer regulates temperature and can reactively change its density in a few seconds.<ref name="xbox"/><ref name="FoR"/> The inner skinsuit is made of a moisture-absorbing synthetic material linked to an environmental control computer and the occupant's [[Spartan neural interface|special-issue neural interface]].<ref name="xbox"/><ref name="FoR"/> This network translates electrochemical signals to digital code and routes them through an interface connection at the rear of the skull.<ref name="xbox"/> Through this interface the user's thoughts commands the armor's movement and weapons and input from the on-board sensors comes directly to the user's mind.<ref name="xbox"/> The synthesis of machine and mind is so fast that it is almost impossible to chart the reaction time. Unfortunately, the system is so reactive that normal human beings cannot use the suit without injuring or even killing themselves. Only humans who have undergone the skeletal, neural and muscular [[Biological augmentation|augmentation]] shared by the Spartans are able to safely operate the suit.<ref name="for115">'''Halo: The Fall of Reach''', ''page 115'' ''page 138'' (2010 edition)</ref>
The armor's outer shell is composed of a multilayer alloy of remarkable strength which has been augmented with a refractive coating capable of dispersing a limited amount of Covenant [[Directed energy weapon|energy weapon]] impact.{{Ref/Reuse|xbox}}<ref name="FoR">'''Halo: The Fall of Reach''' ''page 114-115'' ''page 137'' (2010 edition)</ref> Underneath the alloy shell is a thick black armored titanium nanocomposite bodysuit. Underneath that layer is a gel-filled layer. The gel layer regulates temperature and can reactively change its density in a few seconds.{{Ref/Reuse|xbox}}{{Ref/Reuse|FoR}} The inner skinsuit is made of a moisture-absorbing synthetic material linked to an environmental control computer and the occupant's [[Spartan neural interface|special-issue neural interface]].{{Ref/Reuse|xbox}}{{Ref/Reuse|FoR}} This network translates electrochemical signals to digital code and routes them through an interface connection at the rear of the skull.{{Ref/Reuse|xbox}} Through this interface the user's thoughts commands the armor's movement and weapons and input from the on-board sensors comes directly to the user's mind.{{Ref/Reuse|xbox}} The synthesis of machine and mind is so fast that it is almost impossible to chart the reaction time. Unfortunately, the system is so reactive that normal human beings cannot use the suit without injuring or even killing themselves. Only humans who have undergone the skeletal, neural and muscular [[Biological augmentation|augmentation]] shared by the Spartans are able to safely operate the suit.<ref name="for115">'''Halo: The Fall of Reach''', ''page 115'' ''page 138'' (2010 edition)</ref>


Sandwiched between the external armor and the internal padding is the most devastating weapon the suit carries: a layer of [[polymerized lithium niobocene]], a form of reactive metal liquid crystal.<ref name="xbox"/> Woven by molecular tools into a super-dense layer, this layer is amorphous, yet it amplifies force, doubling lifting capability and increases reaction time by a factor of five.<ref name="Sybex"/> Such technology did not exist when work began on the [[MJOLNIR Powered Assault Armor#Mark I exoskeleton|Mark I prototypes]].<ref name="Sybex"/><ref>'''Halo: The Fall of Reach''' ''page 70'' ''page 89'' (2010 edition)</ref>
Sandwiched between the external armor and the internal padding is the most devastating weapon the suit carries: a layer of [[polymerized lithium niobocene]], a form of reactive metal liquid crystal.{{Ref/Reuse|xbox}} Woven by molecular tools into a super-dense layer, this layer is amorphous, yet it amplifies force, doubling lifting capability and increases reaction time by a factor of five.{{Ref/Reuse|Sybex}} Such technology did not exist when work began on the [[MJOLNIR Powered Assault Armor#Mark I exoskeleton|Mark I prototypes]].{{Ref/Reuse|Sybex}}<ref>'''Halo: The Fall of Reach''' ''page 70'' ''page 89'' (2010 edition)</ref>


Because of these advancements the design is more akin to an actual suit of armor as opposed to a powered exoskeleton; the user moves the suit and in return the suit moves the user. This allows for an highly compact design when compared to other combat systems. The armor contains numerous features including an integrated computer system which continuously monitors weapons, biological functions, and a limited function motion sensor system. The suit also contains a built-in rebreather system that can provide air for up to 90 minutes.<ref name="FoR120"/> The suit's helmet also features imaging and video recording, and thermal sensors among other features.
Because of these advancements, the design is more akin to a conventional suit of armor as opposed to a powered exoskeleton; the user moves the suit and in return the suit moves the user. This allows for a highly compact design when compared to other combat systems. The armor contains numerous features including an integrated computer system which continuously monitors weapons and biological functions, as well as a limited function motion sensor system. The suit also contains a built-in rebreather system that can provide air for up to 90 minutes.{{Ref/Reuse|FoR120}} The suit's helmet also features imaging and video recording, and thermal sensors among other features.


In its final phase the MJOLNIR armor weighs half a short ton (453.6 kilograms),<ref>'''Halo: The Fall of Reach''' ''page 2'' ''page 16'' (2010 edition)</ref> and was at the time of its creation the most advanced piece of tactical military hardware in human hands.<ref name="xbox"/>
In its final phase, the armor weighs half a short ton (453.6 kilograms).<ref>'''Halo: The Fall of Reach''' ''page 2'' ''page 16'' (2010 edition)</ref> At the time of its creation, it was the most advanced piece of tactical military hardware in human hands.{{Ref/Reuse|xbox}}


==Armor platforms==
==Development==
[[File:Mark_IV_schematic.jpg|200px|thumb|A schematic used by Dr. Halsey for the development of future Mark IV variants.]]
[[File:Mark IV schematic.jpg|200px|thumb|A Mjolnir schematic dated September 25, 2524.{{Ref/Note|Although the in-universe filename of this diagram, ''MkIV-schem_092524-B109.tif'', identifies the armor as "MkIV", it is dated to more than decade before the Mark system was adopted.}}]]
Throughout the [[Human-Covenant War|Covenant War]] the Mark IV saw several generational design changes and became a testbed for new technologies and hardware to help improve its integrity and efficiency in certain combat conditions.<ref name="mjolnir">'''[http://halo.xbox.com/en-us/intel/theuniverse/tech/video/the-mjolnir-project-1/cf313a1a-e1e5-4be8-a9a2-7071eda6ca8f Halo Waypoint: The MJOLNIR Project Part 1]'''</ref> While some of these variants are rumors and have never been witnessed in the field, others have become common knowledge.<ref name="eync8889">'''[[Halo Encyclopedia]]''' ''pages 88-89''</ref> By [[2535]] fourteen variants had already been developed.<ref name="journal">'''Dr. Halsey's Personal Journal''' ''January 7th, 2535 entry''</ref> Mark IV went through multiple external design iterations<ref>[http://halo.xbox.com/blogs/Headlines/post/2012/07/19/The-Halo-Bulletin-71812.aspx ''The Halo Bulletin: 7.18.12'']</ref> and variants designed for a specific purpose tend, by necessity, to look different from the contemporary core model.<ref name="way-mjol"/> However, each generational "Mark" is categorized by its internal components and software suit, not by its superficial design: therefore, while a first-generation Mark IV suit may look drastically different from a third-generation suit, they are still essentially the same model.<ref name="way-mjol">'''[http://halo.xbox.com/en-us/intel/related/video/the-mjolnir-project-2/46e89c1a-f619-41e2-ad7f-ab65c61ca2df Halo Waypoint: The MJOLNIR Project Part 2]'''</ref>   
The Mark IV underwent several generational design changes throughout the [[Human-Covenant War]], becoming a testbed for new technologies and hardware to help improve its integrity and efficiency in certain combat conditions.<ref name="mjolnir">'''[http://halo.xbox.com/en-us/intel/theuniverse/tech/video/the-mjolnir-project-1/cf313a1a-e1e5-4be8-a9a2-7071eda6ca8f Halo Waypoint: The MJOLNIR Project Part 1]'''</ref> While some of these variants are rumors and have never been witnessed in the field, others have become common knowledge.<ref name="eync8889">'''[[Halo Encyclopedia (2009 edition)]]''' ''pages 88-89''</ref> 14 variants had been developed by [[2535#January|January 7, 2535]].<ref name="journal">'''Dr. Halsey's Personal Journal''' ''January 7th, 2535 entry''</ref> The armor's external design went through multiple iterations;<ref>[http://halo.xbox.com/blogs/Headlines/post/2012/07/19/The-Halo-Bulletin-71812.aspx ''The Halo Bulletin: 7.18.12'']</ref> variants designed for a specific purpose tend, by necessity, to look different from the contemporary core model.{{Ref/Reuse|way-mjol}} However, each generational "Mark" is categorized by its internal components and software suite, not by its superficial appearance; therefore, while some Mark IV suits may look drastically different from one another, they are still essentially the same model.<ref name="way-mjol">'''[http://halo.xbox.com/en-us/intel/related/video/the-mjolnir-project-2/46e89c1a-f619-41e2-ad7f-ab65c61ca2df Halo Waypoint: The MJOLNIR Project Part 2]'''</ref>   


<!--Please do not add Mark IV into the titles below as the Mark categorization was not mandated until 2535.-->
In February 2525, [[UNSC Special Forces#Naval Special Warfare Command|Naval Special Warfare]] received a prototypical suit for evaluation and final testing. Over the next four months, the unit was tested to ensure proper function and to evaluate its capabilities. However, the prototype was built and fine-tuned for the SPARTAN-II supersoldiers. When a test was conducted to see if a normal human could operate the suit, an override meant to prevent unintended use led to the operator being killed by his own muscular twitches.{{Ref/Reuse|for115}}<ref name="hals2">'''Dr. Halsey's Personal Journal''' ''June 30, 2525 entry''</ref> A short time after the failed demonstration limited production of the MJOLNIR battlesuit was approved.{{Ref/Reuse|hals2}}
===First prototypes===
There were numerous early prototypes of the Mjolnir armor. One such prototype was upgraded to withstand concussive force; the design of this prototype was later used for the [[GRENADIER-class Mjolnir|GRENADIER]] armor system.<ref name="EVGG">'''[[Halo: The Essential Visual Guide]]''' ''- Page 85''</ref>


===Functional prototype===
MJOLNIR was first issued to the Spartan-IIs on [[2525#November|November 27, 2525]].<ref name="First Issue"/> Numerous variant models, including the skunkworks [[Project COBALT]],<ref name="HCDHBJ117"/> had been introduced by [[2526#April|April 2526]].{{Ref/Reuse|TAS}}<ref name="FUD">''Halo 4: Forward Unto Dawn''</ref>
The Materials Group developed this prototype to test the technologies that were being developed for the MJOLNIR battlesuit. In February 2525 this model was sent to [[UNSC Special Forces#Naval Special Warfare Command|Naval Special Warfare]] for evaluation and final testing. Over the next four months the model was tested to ensure proper function and to evaluate its capabilities. The prototype was built and fine-tuned for the SPARTAN-II supersoldiers. A test was conducted to see if a normal human could operate the suit. Because of an override in the prototype's safe mode to prevent unintended use, the operator was killed by his own muscular twitch.<ref name="for115"/><ref name="hals2">'''Dr. Halsey's Personal Journal''' ''June 30, 2525 entry''</ref> A short time after the failed demonstration limited production of the MJOLNIR battlesuit was approved.<ref name="hals2"/>


===Initial production model===
By 2535, the MJOLNIR system had become the single most expensive item ever produced by the UNSC,<ref name="Halo page 45">'''Halo: Ghosts of Onyx''' ''page 45''</ref> with each suit costing as much as a [[UNSC destroyer|destroyer]] to manufacture.<ref name="TSSF">'''Halo Legends''', ''Halo: The Story So Far''</ref> Although the project had been intended as a continuous, pioneering effort to shatter technological barriers,<ref name="TSSF"/> on or shortly before January 7, the budgetary commission overseeing the MJOLNIR project mandated a simplified generational system to categorize, prioritize, and serialize development neatly into fiscal-year budgets. Thus the "Mark" system was introduced, with the systems developed thus far being retroactively designated "Mark IV" to suggest continuity with the powered exoskeleton program that had preceded MJOLNIR's development.{{Ref/Reuse|hals3}}
Five months after production began the MJOLNIR PAA entered service.<ref name="hals2"/> The initial version was bulky, angular, and restrictive in mobility. Due to its design philosophy being centered around a human insurrection this model was not adequately prepared for dealing with advanced alien technology and weapons.<ref name="journal"/> Although highly advanced the suit entered service in an accelerated state due to the Covenant threat. As such, upgrades to the suit were already in the works when it was issued to the Spartans;<ref name="journal"/> at least seven variant models had been introduced by [[2526#April|April 2526]].<ref name="TAS"/><ref name="FUD">''Halo 4: Forward Unto Dawn''</ref> In [[2531]] the suit was replaced by a generational upgrade to better combat the alien threat.<ref name="mjolnir"/><ref name="journal"/>


===Final production model===
Shortly after the budgetary meeting, Dr. Halsey brainstormed numerous improvements for the project going forward (including a number of design sketches), ranging from the now-redesignated Mark IV through the then-hypothetical [[Mark VII]]. Her conception for the Mark IV included technologies not available at the beginning of the war, including a standardized vacuum survival system, standard fusion power, and a new radar sensory package.<ref name="hals3">'''Dr. Halsey's personal journal''' ''January 7, 2535 entry''</ref>
By 2535 the MJOLNIR system had become the single most expensive item ever produced by the UNSC.<ref name="Halo page 45">'''Halo: Ghosts of Onyx''' ''page 45''</ref> It had been intended as a continuous, pioneering effort to shatter technological barriers. However, with each suit costing as much as a [[UNSC destroyer|destroyer]] to manufacture<ref>'''Halo Legends''', ''Halo: The Story So Far''</ref> the budgetary commission overseeing the MJOLNIR project mandated a simplified generational system to categorize, prioritize, and serialize development neatly into fiscal-year budgets. Thus the "Mark" system was added to MJOLNIR, with the current version being retroactively designated "Mark IV" to suggest continuity with the powered exoskeleton program that had preceded MJOLNIR's development.<ref name="hals3"/>


With the adoption of the "Mark" categorization, an updated model of the suit that had entered service four years earlier was adopted as the standard-issue suit. Its design would inform all future "Mark" generations. The third-generation suit included numerous improvements not available at the beginning of the war, including a standardized vacuum survival system, standard fusion power, and a new radar sensory package.<ref name="hals3">'''Dr. Halsey's personal journal''' ''January 7, 2535 entry''</ref>
==Armor variants==
===Advanced Hardware Program===
===Advanced Hardware Program===
The MJOLNIR Advanced Hardware Program concerns the development and furthering of hardware and technologies for testing, evaluation, and incorporation into later versions of the MJOLNIR armor. The original goal of the program was to produce new technologies to aid the Spartan-IIs in the war against the Covenant,<ref name="eync8889"/> such as the prototypical [[energy shielding]] tested by [[Red Team]] in [[2531]].<ref>'''Halo: The Essential Visual Guide''', ''page 119'': ''"Energy shielding was a key feature of Mark V, although other Spartan squads had field-tested prototypes of this technology as early as 2531."''</ref><ref>[https://www.youtube.com/watch?v=E2geKWjvhPY YouTube: Halo Canon Exclusive Interview]</ref> Any changes in appearance of the armor are for research and development of future MJOLNIR components.<ref name="eync8889"/>
The MJOLNIR Advanced Hardware Program concerns the development and furthering of hardware and technologies for testing, evaluation, and incorporation into later versions of the Mjolnir armor. The original goal of the program was to produce new technologies to aid the Spartan-IIs in the war against the Covenant,{{Ref/Reuse|eync8889}} such as the prototypical [[energy shielding]] tested as early as [[2531]].<ref>'''Halo: The Essential Visual Guide''', ''page 119'': ''"Energy shielding was a key feature of Mark V, although other Spartan squads had field-tested prototypes of this technology as early as 2531."''</ref><ref>[https://www.youtube.com/watch?v=E2geKWjvhPY YouTube: Halo Canon Exclusive Interview]</ref> Any changes in appearance of the armor are for research and development of future MJOLNIR components.{{Ref/Reuse|eync8889}}


==Suits==
==Suits==
The MJOLNIR Mark IV platform had several different variants of suits used during its lifespan, with numerous helmets compatible with it.<ref group="note">A lot of depictions of Mark IV are shown across Halo media without names. This section uses descriptions to organise the armor.</ref>
The MJOLNIR Mark IV platform used several armor and helmet configurations during its service.{{Ref/Note|Many depictions of the Mark IV system currently lack official designations; such designs are presented here with physical descriptions.}}


===Base suit===
===Base suit===
This suit was the one that was first distributed to [[Spartan-II]]s during the [[Battle of Chi Ceti IV]].
This suit was issued to the [[Spartan-II]]s during the [[Battle of Chi Ceti]] in November 2525.


====Variants====
====Variants====
[[File:TFoR AS - Baby Blue Team.jpg|thumb|250px|Various types of Mark IV armor worn by [[Blue Team]] during the Battle of Chi Ceti IV.]]
[[File:TFoR AS - Baby Blue Team.jpg|thumb|250px|Various Mjolnir designs worn by [[Blue Team]] during the Battle of Chi Ceti.]]
*'''[[ÄRGER-class Mjolnir|MJOLNIR/Ä]]''' - Ärger - Testbed helmet created for testing design improvements for the Mark IV armor.
*'''[[ARDENT-class Mjolnir|MJOLNIR/Ardent]]''' - Ardent - A helmet that was upgraded by the [[Spirit of Fire]] crew during the [[Second Ark Conflict]].
*'''[[AIR ASSAULT-class Mjolnir|MJOLNIR/AA]]''' - Air Assault - Developed as an improvement of the ODST armor.<ref name="EVG">'''[[Halo: The Essential Visual Guide]]''' ''page 4''</ref>
*'''[[AIR ASSAULT-class Mjolnir|MJOLNIR/AA]]''' - Air Assault - Developed as an improvement of the ODST armor.<ref name="EVG">'''[[Halo: The Essential Visual Guide]]''' ''page 4''</ref>
*'''[[CQC-class Mjolnir|MJOLNIR/CQC]]''' - CQC - Variant for close-quarters combat, including boarding actions and [[Wikipedia:Military Operations in Urban Terrain|MOUT]].<ref name="armor"/>
*'''[[CQC-class Mjolnir|MJOLNIR/CQC]]''' - CQC - Variant for close-quarters combat, including boarding actions and [[Wikipedia:Military Operations in Urban Terrain|MOUT]].{{Ref/Reuse|armor}}
*'''[[EMIL-class Mjolnir|MJOLNIR/E]]''' - Emil - Variant hardened to withstand an extended range of environmental conditions.
*'''[[EOD-class Mjolnir|MJOLNIR/EOD]]''' - EOD - Variant that improves the survivability of the user in close proximity to an explosion.<ref name="armor">'''Halo: Reach''', ''The Armory''</ref>
*'''[[EOD-class Mjolnir|MJOLNIR/EOD]]''' - EOD - Variant that improves the survivability of the user in close proximity to an explosion.<ref name="armor">'''Halo: Reach''', ''The Armory''</ref>
*'''[[GRENADIER-class Mjolnir|MJOLNIR/G]]''' - Grenadier - An up-armored prototype based on the 2535 model of the Mark IV (the first to bear the Mark IV designation) that was used as a testbed for incorporating [[energy shielding]] technology into the MJOLNIR program.<ref name="armor"/>
*'''[[GRENADIER-class Mjolnir|MJOLNIR/G]]''' - Grenadier - Intended to provide additional protection against concussive force. The helmet is an up-armored variant of a prototypical Mark IV design.<ref name="EVGG">'''[[Halo: The Essential Visual Guide]]''' ''- Page 85''</ref> Used as a testbed for incorporating [[energy shielding]] technology into the MJOLNIR program.{{Ref/Reuse|armor}}
*'''[[ISIDOR-class Mjolnir|MJOLNIR/I]]''' - Isidor - Variant crafted with the help of the prodigal Spartan-II combat engineers of Yellow Team.
*'''[[COMMANDO-class Mjolnir|MJOLNIR/K]]''' - Commando - Developed to improve a Spartan's tactical awareness on the battlefield.<ref>'''Halo: The Essential Visual Guide''', ''page 33''</ref>
*'''[[COMMANDO-class Mjolnir|MJOLNIR/K]]''' - Commando - Developed to improve a Spartan's tactical awareness on the battlefield.<ref>'''Halo: The Essential Visual Guide''', ''page 33''</ref>
*'''[[OPERATOR-class Mjolnir|MJOLNIR/Operator]]''' - Operator - Variant for the ONI's Beta-5 Asymmetrical Action Group.
*'''[[OPERATOR-class Mjolnir|MJOLNIR/Operator]]''' - Operator - Variant for ONI's Beta-5 Asymmetrical Action Group.
*'''[[PILOT-class Mjolnir|MJOLNIR/Pilot]]''' - Pilot - A variant developed for use by the [[UNSC Air Force]] that was adapted for compatibility with Mark IV.<ref>'''Halo: The Essential Visual Guide''', ''Pilot page''</ref>
*'''[[PALADIN-class Mjolnir|MJOLNIR/Paladin]]''' - Paladin - One of Dr. Halsey's side projects, later improved with GEN3 Mjolnir technologies.
*'''[[PILOT-class Mjolnir|MJOLNIR/Pilot]]''' - Pilot - Variant developed for use by the [[UNSC Air Force]] that was adapted for compatibility with Mark IV.<ref>'''Halo: The Essential Visual Guide''', ''Pilot page''</ref>
*'''[[SCOUT-class Mjolnir|MJOLNIR/S]]''' - Scout - Variant uses advanced materials to provide stealth properties.
*'''[[SCOUT-class Mjolnir|MJOLNIR/S]]''' - Scout - Variant uses advanced materials to provide stealth properties.
*'''[[THEODOR-class Mjolnir|MJOLNIR/T]]''' - Theodor - Variant made by [[Materials Group]] at the [[Special Warfare Center]].
*'''[[ULRICH-class Mjolnir|MJOLNIR/U]]''' - Ulrich - One of the first Mjolnir variants to feature programmable datacores dedicated to supporting modular equipment packages.
*'''[[VALIANT-class Mjolnir|MJOLNIR/Valiant]]''' - Valiant - Variant made by [[Emerson Tactical Systems]].
*'''[[WILHELM-class Mjolnir|MJOLNIR/W]]''' - Wilhelm - A classified variant made by [[Materials Group]] at the [[Damascus Materials Testing Facility]].
*'''[[YPSILON-class Mjolnir|MJOLNIR/Y]]''' - Ypsilon - Variant  fitted with a low-profile VISR prototype.
*'''[[ZACHARIAS-class Mjolnir|MJOLNIR/Z]]''' - Zacharias - Variant field tested by the first Headhunter deep strike teams.
===Project: COBALT===
[[Project COBALT|Project: COBALT]] introduced a new Mjolnir chassis for [[Blue Team]] early in the [[Human-Covenant War]].<ref name="HCDHBJ117">''[[Halo: Collateral Damage]]'', Hardcover bonus - John-117</ref>
<gallery>
File:HSS full cover.jpg|John-117 wearing his set of [[Project COBALT#COBALT CV.117|COBALT CV.117]] armor.
</gallery>


====Unidentified variants====
====Unidentified variants====
*'''Mark VI-like variant (2525)''': John-117 was equipped with this variant during the [[Battle of Chi Ceti]] on [[2525#November|November 27, 2525]]. It resembles a cross between Mjolnir's initial production model and the later [[Mark VI]]. [[Cortana]]'s upgrade of John's Mark VI suit superficially resembles this model, particularly in the shape of the helmet.<ref>''[[Halo 4: The Essential Visual Guide]]'', page 10</ref>
*'''Mark VI-like variant (2525)''': John-117 was equipped with this variant during the [[Battle of Chi Ceti]] on [[2525#November|November 27, 2525]].{{Ref/Note|The novel ''Halo: The Fall of Reach'' describes the Spartan-IIs as wearing identical armor during the Battle of Chi Ceti IV; the comics ''[[Halo: Fall of Reach - Covenant]]'' and ''[[Halo: Collateral Damage]]'' follow suit. However, ''[[Halo: The Fall of Reach - The Animated Series]]'' depicts the Spartans in distinct variants for the sake of the visual medium.}}
<gallery>
<gallery>
File:TFoR Animated - John Mark IV.png|John wearing the variant aboard the Covenant vessel ''[[Unrelenting]]''.
File:TFoR Animated - John Mark IV.png|John wearing the variant aboard the Covenant vessel ''[[Unrelenting]]''.
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</gallery>
</gallery>


*'''Argus-like variant''': Linda-058 wore this helmet during the Battle of Chi Ceti. It is very similar in appearance to the Mark VI Argus helmet she would later wear.
*'''Argus-like variant''': Linda-058 wore this helmet during the Battle of Chi Ceti. It is very similar in appearance to the Mark VI and GEN2 [[ARGUS-class_Mjolnir|Argus]] helmets she would later wear.
<gallery>
<gallery>
File:Mark IV Argus.png|Linda wearing the variant.
File:Mark IV Argus.png|Linda wearing the variant.
File:TFORAS_Argus_Helmet_Turnaround.jpg|Turnarounds of the Mark IV Argus helmet.
File:TFORAS_Argus_Helmet_Turnaround.jpg|Turnarounds of the Argus-like helmet.
</gallery>
</gallery>


*'''Centurion-like variant''': Fred-104 wore this helmet during the Battle of Chi Ceti. It is very similar in appearance to the Mark VI Centurion helmet he would later wear.
*'''Centurion-like variant''': Fred-104 wore this helmet during the Battle of Chi Ceti. It is very similar in appearance to the Mark VI and GEN2 [[CENTURION-class_Mjolnir|Centurion]] helmets he would later wear.
<gallery>
<gallery>
File:Mark IV Centurion.png|Fred wearing the variant.
File:Mark IV Centurion.png|Fred wearing the variant.
</gallery>
</gallery>


*'''CQB-like variant''': Though the [[CQB-class Mjolnir|CQB variant]] proper did not enter service until 2535, the helmet's architecture saw use as early as 2525,<ref>[https://www.halowaypoint.com/en-us/forums/db05ce78845f4120b062c50816008e5d/topics/about-that-fall-of-reach-animated-series-trailer/e114975f-ddcc-4109-bf72-e4d8efc29ec5/posts?page=2#post37 '''Halo Waypoint''': ''GrimBrotherOne'': Nothing has changed about the CQB variant of the Mjolnir armor system. Samuel is utilizing a developmental helmet permutation that shares visual cues with the eventual CQB. This kind of cross-germination of physical shape and design between all Mjolnir platforms was pervasive in the early development of Mjolnir at the Materials Group facilities.]</ref>
*'''CQB-like variant''': Though the [[CQB-class Mjolnir|CQB variant]] proper did not enter service until 2535, the helmet's physical architecture saw use as early as 2525,<ref>[https://www.halowaypoint.com/en-us/forums/db05ce78845f4120b062c50816008e5d/topics/about-that-fall-of-reach-animated-series-trailer/e114975f-ddcc-4109-bf72-e4d8efc29ec5/posts?page=2#post37 '''Halo Waypoint''': ''GrimBrotherOne'': Nothing has changed about the CQB variant of the Mjolnir armor system. Samuel is utilizing a developmental helmet permutation that shares visual cues with the eventual CQB. This kind of cross-germination of physical shape and design between all Mjolnir platforms was pervasive in the early development of Mjolnir at the Materials Group facilities.]</ref>
<gallery>
<gallery>
File:HTFORTAS Mark IV CQB-like Mjolnir.png|[[Samuel-034]] wearing a proto-CQB helmet at Chi Ceti IV in November 2525.
File:HTFORTAS Mark IV CQB-like Mjolnir.png|[[Samuel-034]] wearing a proto-CQB helmet at Chi Ceti IV in November 2525.
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</gallery>
</gallery>


*'''EVA-like variant''': A Spartan-II was issued this helmet during the Battle of Chi Ceti.
*'''[[EVA-class_Mjolnir|EVA-like variant]]''': A Spartan-II was issued this helmet during the Battle of Chi Ceti.
<gallery>
<gallery>
File:Mark IV helmet unknown fishbowl.png|A Spartan-II equipped with the helmet.
File:Mark IV helmet unknown fishbowl.png|A Spartan-II equipped with the helmet.
</gallery>
</gallery>


*'''Hermes-like variant''': Kelly-087 wore this helmet during the Battle of Chi Ceti. It is very similar in appearance to the [GEN2] Hermes helmet she would later wear.
*'''Hermes-like variant''': Kelly-087 wore this helmet during the Battle of Chi Ceti. It is very similar in appearance to the GEN2 [[HERMES-class_Mjolnir|Hermes]] helmet she would later wear.
<gallery>
<gallery>
File:Mark_IV_Hermes.png|Kelly wearing the Hermes-esque helmet.
File:Mark_IV_Hermes.png|Kelly wearing the Hermes-esque helmet.
File:TFORAS_Hermes_Helmet_Turnaround.jpg|Turnaround of the Mark IV Hermes-like helmet.
File:TFORAS_Hermes_Helmet_Turnaround.jpg|Turnaround of the Hermes-like helmet.
</gallery>
</gallery>


*'''Unspecified variant''': During the Battle of Chi Ceti, a Spartan-II tested out this helmet.
*'''Unspecified variant''': During the Battle of Chi Ceti, a Spartan-II tested out this helmet.
<gallery>
<gallery>
File:Mark IV helmet Prefect-like.png|A Spartan-II wearing helmet.
File:Mark IV helmet Prefect-like.png|A Spartan-II wearing the helmet.
</gallery>
</gallery>


===Mark-V(B)-like suit===
===Mark-V(B)-like suit===
Around [[2526]] to [[2546]] a variant of suit was utilized that looks similar to Mjolnir [[B-class Mjolnir|MJOLNIR/B]].
Designs similar to the later [[B-class Mjolnir|MJOLNIR/B]] variant saw use in April 2526.
====Variants====
====Variants====
*'''[[B-class Mjolnir|MJOLNIR/B]]''' - B - Variant worn by [[Frederic-104]] during the [[Battle of Circinius IV]].<ref name="FUD"/>
*'''[[B-class Mjolnir|MJOLNIR/B]]''' - B - Variant worn by [[Fred-104]] during the [[Battle of Circinius IV]].{{Ref/Reuse|FUD}}


====Unidentified suit====
====Unidentified suit====
*'''Air Assault-like''': During the Battle of Circinius IV in April 2526, [[Kelly-087]] utilized a variant that had similar architecture to Air Assault armor. She wore the helmet in conjunction with the [[B-class Mjolnir|Mark IV (b) armor]].<ref name="FUD"/>
*'''Air Assault-like''': During the Battle of Circinius IV in April 2526, [[Kelly-087]] utilized a variant that had similar architecture to Air Assault armor (introduced in 2535). She wore the helmet in conjunction with the [[B-class Mjolnir|Mark IV (b) armor]].{{Ref/Reuse|FUD}}
<gallery>
<gallery>
File:FuD Kelly variant.png|The variant worn by Kelly-087 in April 2526.
File:FuD Kelly variant.png|The variant worn by Kelly-087 in April 2526.
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</gallery>
</gallery>


===Mark-VI-like suit===
===Mark-VI-like suits===
Around [[2526]] to [[2546]] a variant of suit was utilized that looks similar to Mjolnir [[Mark VI]]. The physical shape and design of this variant was later used as model for the [[MJOLNIR Powered Assault Armor (GEN3)|MJOLNIR Powered Assault Armor [GEN3]]].
Variants resembling the later [[Mark VI]] saw use as early as April 2526.


====Variants====
====Variants====
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====Unidentified variants====
====Unidentified variants====
*'''Mark VI-like variant (2526)''': John-117 was outfitted with this variant during at least three separate engagements during the [[Human-Covenant War]]. Considerably slimmer than Mjolnir's initial production model, this variant bears a strong resemblance to the later Mark VI.
*'''Mark VI-like variant (2526)''': John-117 was outfitted with this variant during at least three separate engagements during the [[Human-Covenant War]]. Considerably slimmer than Mjolnir's initial production model, this variant bears a strong resemblance to the later Mark VI, especially the Mark VI [[MJOLNIR Powered Assault Armor (GEN3)|GEN3]] suit he would eventually wear.
<gallery>
<gallery>
File:H4FUD-MasterChief-John117.png|John wearing the variant on [[Circinius IV]] in [[2526]].
File:H4FUD-MasterChief-John117.png|John wearing the variant on [[Circinius IV]] in [[2526]].
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File:Homecoming_John117_Concept.png|John's armor during the time of Daisy-023's death.
File:Homecoming_John117_Concept.png|John's armor during the time of Daisy-023's death.
File:HaloLegends-MasterChief.png|John wearing the armor during [[Operation: WARM BLANKET]] in [[2544]].
File:HaloLegends-MasterChief.png|John wearing the armor during [[Operation: WARM BLANKET]] in [[2544]].
File:Merch-McFarlane-HLMasterChief front.jpg|Front view.
File:Merch-McFarlane-HLMasterChief left view.jpg|Left view.
File:Merch-McFarlane-HLMasterChief right view.jpg|Right view.
File:Merch-McFarlane-HLMasterChief back.jpg|Back view.
</gallery>
</gallery>


*'''Mark VI-like variant (2544)''': [[Solomon-069]], [[Arthur-079]], and Fred-104 utilized this helmet during [[Operation: WARM BLANKET]]. The only notable difference between this variant and the similar model John wore during the operation is the more prominent external rebreathers.
*'''Cohort-like variant (2544)''': [[Solomon-069]], [[Arthur-079]], and Fred-104 used this helmet during [[Operation: WARM BLANKET]]. It is very similar in appearance to the GEN3 [[COHORT-class Mjolnir|Cohort]] helmet Fred would later wear.
<gallery>
<gallery>
File:Mark IV helmet unknown.png|Solomon-069 wearing the helmet during Operation: WARM BLANKET.
File:Mark IV helmet unknown.png|Solomon-069 wearing the helmet during Operation: WARM BLANKET.
File:Fred Combat Knives Halo Legends.jpg|Fred-104 wearing the same variant.
File:Fred Combat Knives Halo Legends.jpg|Fred-104 wearing the same variant.
File:Merch-McFarlane-HLFrederic front.jpg|Front view.
File:Merch-McFarlane-HLFrederic left side.jpg|Left view.
File:Merch-McFarlane-HLFrederic right side.jpg|Right view.
File:Merch-McFarlane-HLFrederic back view.jpg|Back view.
</gallery>
</gallery>


===Unknown Mark IV suit===
*'''Mark VI-like variant (2548)''': [[Owen-B096]] was outfitted with this variant during the first part of the [[Battle of Meridian]].
*'''Gray Team variant''': [[Jai-006]] of [[Gray Team]] wore a distinct variant of the Mark IV in [[2535]]. Another member of Gray Team wore armor with a wider left pauldron.<ref>''Halo: The Cole Protocol'' cover art</ref>
<gallery>
<gallery>
File:CP armor.png|A member of Gray Team wearing the variant at [[the Rubble]].
File:HBB_Owen.PNG
File:Grey_Team_Mark_IV_variant.png|Jai-006 in his Mark IV armor.
</gallery>
</gallery>


===Project: COBALT===
===Unknown Mark IV suit===
[[Project COBALT|Project: COBALT]] is a project that introduced a new chassis of Mark IV for [[Blue Team]] to use during the [[Human-Covenant War]].<ref name="HCDHBJ117">''[[Halo: Collateral Damage]]'', Hardcover bonus - John-117</ref>
*'''Gray Team variant''': In [[2535]], [[Jai-006]] wore a distinct variant of the Mark IV superficially resembling [[MJOLNIR Powered Assault Armor (GEN2)|GEN2]] [[RECRUIT-class Mjolnir]].{{Ref/Game|Id=Terminal1|H2A|Terminal (Halo 2: Anniversary)|Terminal 1}}{{Ref/Note|The color of Jai-006's helmet visor during the [[Battle of the Rubble]] has been inconsistently depicted. Throughout ''[[Halo: The Cole Protocol]]'', Jai's visor is described as being gold. However, in ''[[Halo 2: Anniversary]]''{{'}}s [[Terminal (Halo 2: Anniversary)|terminal]]s, his visor is depicted as silver.}} Another member of [[Gray Team]] wore a variant of Mark IV resembling [[MJOLNIR (B)|Mark V[B]]].<ref>''Halo: The Cole Protocol'' cover art</ref>  
 
<gallery>
<gallery>
File:HSS full cover.jpg|John-117 wearing his set of [[Project COBALT#COBALT CV.117|COBALT CV.117]] armor.
File:CP armor.png|A member of Gray Team wearing the variant at [[the Rubble]].
File:Grey_Team_Mark_IV_variant.png|Jai-006 in his Mark IV variant.
</gallery>
</gallery>


===GEN2===
===GEN2===
====Hybrid GEN2/MARK IV [GEN1]====
====Hybrid GEN2/MARK IV [GEN1]====
After the [[Human-Covenant War]], a [[MJOLNIR Powered Assault Armor (GEN2)|GEN2]] variant was developed that uses many components of the original Mark IV armor after firmware updates. This suit is still used as of [[2558#October|October 2558]],<ref name="H5G"/> with [[Tom-B292]] using the armor's forearms.<ref name="GC">[https://www.halowaypoint.com/en-us/news/golden-clouds '''Halo Waypoint''': ''Community Update - Golden Clouds'']</ref>
After the [[Human-Covenant War]], a [[MJOLNIR Powered Assault Armor (GEN2)|GEN2]] variant was developed that uses many components of the original Mark IV armor after firmware updates. This suit is still used as of [[2558#October|October 2558]],{{Ref/Reuse|H5G}} with [[Tom-B292]] using the armor's forearms.<ref name="GC">[https://www.halowaypoint.com/en-us/news/golden-clouds '''Halo Waypoint''': ''Community Update - Golden Clouds'']</ref>


<gallery>
<gallery>
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====Red Team's hybrid GEN2/MARK IV====
====Red Team's hybrid GEN2/MARK IV====
After Douglas-042's Mjolnir Mark IV armor was damaged by [[Atriox]] in May [[2559]], core components of the suit could not be replicated by the ''Spirit of Fire''. Red Team took advantage of the GEN2 parts recovered from UNSC outposts, reverse-engineered solutions developed by [[Serina]], and deft modifications made by [[Isabel]] to stay in the fight. The potential amalgamation of these changes could lead to completely new design permutations, customized for the needs of each Spartan.<ref name="art of war">[https://www.halowaypoint.com/en-us/news/the-art-of-war-s '''Halo Waypoint''' - ''Canon Fodder: The Art of War(s)'']</ref><ref group="note">[[Jeff Easterling]] [http://www.haloarchive.com/forum/topic/9-canon-fodder-and-random-lore-chat/?do=findComment&comment=216910 confirmed] that the armors' appearance in ''Halo Wars 2'' differs between [[Blur Studios]]' cinematic models and [[Creative Assembly]]'s in-game models due to resource management.</ref>
After Douglas-042's Mjolnir Mark IV armor was damaged by [[Atriox]] in May [[2559]], core components of the suit could not be replicated by the ''Spirit of Fire''. Red Team took advantage of the GEN2 parts recovered from UNSC outposts, reverse-engineered solutions developed by [[Serina]], and deft modifications made by [[Isabel]] to stay in the fight. The potential amalgamation of these changes could lead to completely new design permutations, customized for the needs of each Spartan.<ref name="art of war">[https://www.halowaypoint.com/en-us/news/the-art-of-war-s '''Halo Waypoint''' - ''Canon Fodder: The Art of War(s)'']</ref>{{Ref/Note|1=343 Industries writer [[Jeff Easterling]] [http://www.haloarchive.com/forum/topic/9-canon-fodder-and-random-lore-chat/?do=findComment&comment=216910 confirmed] that the armors' appearance in ''Halo Wars 2'' differs between [[Blur Studios]]' cinematic models (the original design) and [[Creative Assembly]]'s in-game models (the hybrid design) is resource management and communication between the studios.}}
<gallery>
<gallery>
File:HW2-Spartan.jpg|GEN2 Mark IV
File:HW2-Spartan.jpg|GEN2 Mark IV
File:Jerome Halo Wars 2 leader portait.png|Jerome's GEN2 Mark IV.
File:Jerome Halo Wars 2 leader portait.png|Jerome's GEN2 Mark IV.
</gallery>
==Non-canon and dubious canon appearances==
====Silver Timeline Variants====
*'''[[BERTA-class_Mjolnir|MJOLNIR/B]]''' - Berta - A variant designed alongside a Spartan-specific variation of [[HRUNTING/YGGDRASIL Mark I ADS]]. The one worn by [[SPARTAN-II program/Silver|Spartan-II]] Kai-125 had been modified with sniper targeting interlinks and "smart shot" interfaces.{{Ref/Film|TV|Detail=[[Halo: The Television Series Season One#Paramount+ UK launch|London Premiere descriptions]]|Quote='''Kai-125 - Berta helmet''': Kai's Mk. IV/B helmet was developed alongside a Spartan-specific variation of the HRUNTING/YGGDRASIL Mark I Armor Defense System. Kai has modified her suit with sniper targeting interlinks and "smart shot" interfaces suited for her long-range fighting style.}}
<gallery>
File:HTV-HalseyComputer-Kai.jpg|[[Kai-125/Silver|Kai-125]]'s Berta-class helmet.
</gallery>
*'''[[SAMUEL-class Mjolnir|MJOLNIR/S]]''' - Samuel - A variant featuring sensor and BIOS improvements co-developed by Riz-028 after her analysis of [[Covenant]] hunter-[[Seeker (AI)|seekers]] during the [[Battle of Arcadia|Arcadian campaign]].{{Ref/Film|TV|Detail=[[Halo: The Television Series Season One#Paramount+ UK launch|London Premiere descriptions]]|Quote='''Riz-028 - Samuel helmet''': The Mk. IV/S helmet features novel sensor and BIOS improvements co-developed by Riz-028 after her close analysis of Covenant hunter-seekers during the Arcadian campaign. Her work continues to inform the secretive MJOLNIR reconnaissance and surveillance program and its future helmet designs.}} Presumably named after [[Samuel-034]].
<gallery>
File:HTV-HalseyComputer-Riz.jpg|[[Riz-028/Silver|Riz-028]]'s Samuel-class helmet.
</gallery>
</gallery>


==Inner armor components==
==Inner armor components==
*'''Inner skinsuit:'''
*'''Inner skinsuit:'''
The inner skinsuit is made of a moisture-absorbing synthetic material linked to an environmental control computer and the occupant's neural interface. It controls the suit's temperature and actively changes how the suit fits the user.<ref name="for115"/>
The inner skinsuit is made of a moisture-absorbing synthetic material linked to an environmental control computer and the occupant's neural interface. It controls the suit's temperature and actively changes how the suit fits the user.{{Ref/Reuse|for115}}


*'''[[Hydrostatic gel]]:'''  
*'''[[Hydrostatic gel]]:'''  
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*'''[[Polymerized lithium niobocene|Liquid metal crystal piezoelectric layer]]:'''
*'''[[Polymerized lithium niobocene|Liquid metal crystal piezoelectric layer]]:'''
Fitted in between the outer plates and the inner padding, is a layer of liquid crystal within a piezoelectric material that deforms along a preferred axis when exposed to an electric charge.<ref name="journaljul">'''Dr. Halsey's Personal Journal''' ''July 11th, 2511 entry''</ref> This layer acts as a sheath or a suit artificial muscle; this reactive piezoelectric effect increases the strength, reaction time, mobility, speed, and all around physical performance of the suit's user.<ref name="journaljul"/> The material is amorphous, thus circumventing a major obstacle in its design: custom-fitting millions of the polygonal pieces under the second armor layer.<ref name="journalsep">'''Dr. Halsey's Personal Journal''' ''September 1st, 2525 entry''</ref> Knitted together at a molecular level the liquid crystal material is merely "poured" into a multilayered Sierpinski capillary system where microelectric fields can direct crystallization geometries.<ref name="journalsep"/> The only downfall is the materials production, which involves classified super-toxic precursor materials and requires a zero-gravity environment.<ref name="journalsep"/> As such this layer accounts for over eighty percent of the MJOLNIR armors cost of construction and materials.
Fitted in between the outer plates and the inner padding, is a layer of liquid crystal within a piezoelectric material that deforms along a preferred axis when exposed to an electric charge.<ref name="journaljul">'''Dr. Halsey's Personal Journal''' ''July 11th, 2511 entry''</ref> This layer acts as a sheath or a suit artificial muscle; this reactive piezoelectric effect increases the strength, reaction time, mobility, speed, and all around physical performance of the suit's user.{{Ref/Reuse|journaljul}} The material is amorphous, thus circumventing a major obstacle in its design: custom-fitting millions of the polygonal pieces under the second armor layer.<ref name="journalsep">'''Dr. Halsey's Personal Journal''' ''September 1st, 2525 entry''</ref> Knitted together at a molecular level the liquid crystal material is merely "poured" into a multilayered Sierpinski capillary system where microelectric fields can direct crystallization geometries.{{Ref/Reuse|journalsep}} The only downfall is the materials production, which involves classified super-toxic precursor materials and requires a zero-gravity environment.{{Ref/Reuse|journalsep}}


*'''[[Pressure seal]]:'''
*'''[[Pressure seal]]:'''
Line 185: Line 212:


*'''Titanium nanocomposite bodysuit:'''
*'''Titanium nanocomposite bodysuit:'''
Sandwiched between the external armor and the internal padding is a thick, black armored bodysuit. This suit has numerous functions, small but vital to the safety and survival of the wearer. The bodysuit is made of a titanium-based material, making it very strong and yet very flexible. It also serves as another layer of protection against ballistics attacks and is coated with a heat resistant material to disperse heat from plasma weapons.<ref name="enyc"/>
Sandwiched between the external armor and the internal padding is a thick, black armored bodysuit. This suit has numerous functions, small but vital to the safety and survival of the wearer. The bodysuit is made of a titanium-based material, making it very strong and yet very flexible. It also serves as another layer of protection against ballistics attacks and is coated with a heat resistant material to disperse heat from plasma weapons.{{Ref/Reuse|enyc}}


*'''Lock-down system''': The lock-down system protects muscles and joints from traumatic, high-impact injuries by seizing the suit into a rigid posture through modifying the density of the hydrostatic gel layer.<ref>'''Halo 3''', level ''[[Arrival]]''</ref><ref>'''Halo Encyclopedia''', page 91</ref><ref>'''Halo: Reach''', campaign level ''[[Tip of the Spear]]''</ref><ref>[http://www.youtube.com/watch?v=eLmtVh_bmhs '''Youtube''': ''Halo Reach Legendary Edition'' developer commentary, part 4]</ref><ref group="note">No source has stated that the Mark IV was equipped with a lock-down system. However, this article assumes that the Mark IV did possess such a system, due in part to [[Jorge-052]] being able to lock his upgraded Mark IV/G armor in the level ''Tip of the Spear'' in ''Halo: Reach''.</ref>
*'''Lock-down system''': The lock-down system protects muscles and joints from traumatic, high-impact injuries by seizing the suit into a rigid posture through modifying the density of the hydrostatic gel layer.<ref>'''Halo 3''', level ''[[Arrival]]''</ref><ref>'''Halo Encyclopedia: The Definitive Guide to the Halo Universe''', page 91</ref><ref>'''Halo: Reach''', campaign level ''[[Tip of the Spear]]''</ref><ref>[http://www.youtube.com/watch?v=eLmtVh_bmhs '''Youtube''': ''Halo Reach Legendary Edition'' developer commentary, part 4]</ref>{{Ref/Note|No source has stated that the Mark IV was equipped with a lock-down system. However, this article assumes that the Mark IV did possess such a system, due in part to [[Jorge-052]] being able to lock his upgraded Mark IV/G armor in the level ''Tip of the Spear'' in ''Halo: Reach''.}}


==Outer shell and components==
==Outer shell and components==
The outer shell of the MJOLNIR armor is comprised of a thick titanium alloy. This alloy is very resilient, being nearly impervious to small arms fire. While enough impacts from armor-piercing rounds will breach the outer shell, the suit can take a few glancing blows from them without compromising the armor. The outer shell of the MJOLNIR suit is covered with a refractive coating to help disperse the heat discharged by Covenant energy weapons. However, one or two direct hits from any plasma weapon will compromise the armor plating.<ref name="enyc">'''Halo Encyclopedia''' ''page 90''</ref>   
The outer shell of the MJOLNIR armor is comprised of a thick titanium alloy. This alloy is very resilient, being nearly impervious to small arms fire. While enough impacts from armor-piercing rounds will breach the outer shell, the suit can take a few glancing blows from them without compromising the armor. The outer shell of the MJOLNIR suit is covered with a refractive coating to help disperse the heat discharged by Covenant energy weapons. However, one or two direct hits from any plasma weapon will compromise the armor plating.<ref name="enyc">'''Halo Encyclopedia: The Definitive Guide to the Halo Universe''' ''page 90''</ref>   


*'''Integrated Communications Helmet:'''
*'''Integrated Communications Helmet:'''
The MJOLNIR helmet (properly the Integrated Communications Helmet) is one of the most vital aspects to the MJOLNIR armor system. It is made of [[titanium]] and features a [[heads-up display]] (HUD) that links to the brain and hands; the HUD can identify equipment and display information about it when it is picked up by the wearer. It also features an environmental control unit that includes filters to remove toxins from the atmosphere, as well as a rebreather to automatically supply oxygen to the wearer during EVA. In addition the helmet contains thermal and motion sensors, communications, solar-powered lighting, and imaging and video gear.<ref name="hals3"/>
The MJOLNIR helmet (properly the Integrated Communications Helmet) is one of the most vital aspects to the MJOLNIR armor system. It is made of [[titanium]] and features a [[heads-up display]] (HUD) that links to the brain and hands; the HUD can identify equipment and display information about it when it is picked up by the wearer. It also features an environmental control unit that includes filters to remove toxins from the atmosphere, as well as a rebreather to automatically supply oxygen to the wearer during EVA. In addition the helmet contains thermal and motion sensors, communications, solar-powered lighting, and imaging and video gear.{{Ref/Reuse|hals3}}


The helmet's most important feature is the direct neural-interface system which connects to a Spartan's neural implants. Two core processor chips are implanted into the subject's skull in the rear of the head. This is essentially comparable to an on-board computer using parts of the human brain for processing - when the connector at the rear of the subject's head and receptors in the brain link to the helmet's on-board sensors it creates the neural link needed to move the MJOLNIR suit.<ref name="hals3"/>
The helmet's most important feature is the direct neural-interface system which connects to a Spartan's neural implants. Two core processor chips are implanted into the subject's skull in the rear of the head. This is essentially comparable to an on-board computer using parts of the human brain for processing - when the connector at the rear of the subject's head and receptors in the brain link to the helmet's on-board sensors it creates the neural link needed to move the MJOLNIR suit.{{Ref/Reuse|hals3}}


The first-generation helmet was retained for use with the 2535 model<ref>[[:File:Mark IV schematic.jpg|2535 Mark VI schematic]]</ref> and was later upgraded for use with the Mark V.<ref>[http://www.readyuplive.com/forum/showthread.php/5088-Halo-Reach-Armory-*COMPLETE-LIST* ''Halo: Reach'' Armory - hosted by Ready Up Live]</ref>
The first-generation helmet was retained for use with the 2535 model<ref>[[:File:Mark IV schematic.jpg|2535 Mark VI schematic]]</ref> and was later upgraded for use with the Mark V.<ref>[http://www.readyuplive.com/forum/showthread.php/5088-Halo-Reach-Armory-*COMPLETE-LIST* ''Halo: Reach'' Armory - hosted by Ready Up Live]</ref>


*'''Titanium alloy outer shell/chest:'''
*'''Titanium alloy outer shell/chest:'''
The titanium chest plating provides maximum ballistics protection across all generations of the Mark IV. The original version consisted of wide plating to allow for free rotation of the head and neck; the external microphone was located below the collar area and below that an environmental control unit. This model also had large arm sockets and the waist area consisted of free-rotating bearings which lock into the lower body or jumper armor section. Later versions of the chest plates are more angular and are joined via a hinge system on both the central brace and the shoulder connectors, allowing them to rise and fall with the user's movements.<ref name="hals3"/>
The titanium chest plating provides maximum ballistics protection across all generations of the Mark IV. The original version consisted of wide plating to allow for free rotation of the head and neck; the external microphone was located below the collar area and below that an environmental control unit. This model also had large arm sockets and the waist area consisted of free-rotating bearings which lock into the lower body or jumper armor section. Later versions of the chest plates are more angular and are joined via a hinge system on both the central brace and the shoulder connectors, allowing them to rise and fall with the user's movements.{{Ref/Reuse|hals3}}


*'''Titanium alloy outer shell/arms:'''
*'''Titanium alloy outer shell/arms:'''
The first version's shoulder and arm plating consisted of an organic shape with larger shoulder area for ample protection; the upper assembly piece sat flush inside the upper-arm armor. The elbow armor was hinged to fit flush when the wearer's arm was straight, making hyperextension impossible without force adequate to destroy the plating. The forearm armor is the same with locking pieces to prevent over-rotation and the lower portion is attached to the handguard. The range of motion is adequate for firearm use and hand-to-hand combat, however the guard prevents hyperextension of the wrist. Later revisions to this armor discard this for more nanofabricated pieces and more mobility focused plating. The pauldrons are mounted at a downwards diagonal angle at the upper edge of the shoulder, independently of the armor below them. This allows the lower arm pieces to slide and rotate beneath them, and when the arms are raised, the angled pauldrons move with them.<ref name="hals3"/>
The first version's shoulder and arm plating consisted of an organic shape with larger shoulder area for ample protection; the upper assembly piece sat flush inside the upper-arm armor. The elbow armor was hinged to fit flush when the wearer's arm was straight, making hyperextension impossible without force adequate to destroy the plating. The forearm armor is the same with locking pieces to prevent over-rotation and the lower portion is attached to the handguard. The range of motion is adequate for firearm use and hand-to-hand combat, however the guard prevents hyperextension of the wrist. Later revisions to this armor discard this for more nanofabricated pieces and more mobility focused plating. The pauldrons are mounted at a downwards diagonal angle at the upper edge of the shoulder, independently of the armor below them. This allows the lower arm pieces to slide and rotate beneath them, and when the arms are raised, the angled pauldrons move with them.{{Ref/Reuse|hals3}}


*'''Titanium alloy outer shell/waist:'''
*'''Titanium alloy outer shell/waist:'''
The MJOLNIR armor's torso plating is connected to the upper-torso plating by free-rotating waist connectors the waist plating contains ammunition/utility pouches. The lower-abdomen plate connects into a track for upper torso bending, the codpiece is connected to the femoral-artery armor.<ref name="hals3"/>
The MJOLNIR armor's torso plating is connected to the upper-torso plating by free-rotating waist connectors the waist plating contains ammunition/utility pouches. The lower-abdomen plate connects into a track for upper torso bending, the codpiece is connected to the femoral-artery armor.{{Ref/Reuse|hals3}}


*'''Titanium alloy outer shell/legs:'''
*'''Titanium alloy outer shell/legs:'''
The MJOLNIR PAA's leg armor consists of two major plating sections, with a third piece protecting the knees. The earlier version of the armor consisted of the thigh armor which is actually two sections held together by two locking collars, the knee pads are secured on the sides. The lower leg contains reinforced piezoelectric bladders which secure ankle and lower legs to prevent impact injury from high-elevation jumps. The boots consist of 15mm-thick soles, which are secured by a foot covering hinge locking bolt.<ref name="hals3"/>
The MJOLNIR PAA's leg armor consists of two major plating sections, with a third piece protecting the knees. The earlier version of the armor consisted of the thigh armor which is actually two sections held together by two locking collars, the knee pads are secured on the sides. The lower leg contains reinforced piezoelectric bladders which secure ankle and lower legs to prevent impact injury from high-elevation jumps. The boots consist of 15mm-thick soles, which are secured by a foot covering hinge locking bolt.{{Ref/Reuse|hals3}}


*'''Magnetic weapon holder strips:'''
*'''Magnetic weapon holder strips:'''
Available on updated outer armor components of the Mark IV the magnetic strips are very small yet powerful magnets placed on the legs, waist, and back of the suit and is used to hold any equipment with a magnetic property. The suit also contains a magnet system on the boots of the MJOLNIR suit that allow its wearer to stay attached to a metal surface in zero-G environments and can be toggled on or off by the wearer. In addition to the magnetic holders, the default Mark IV is also equipped with utility pouches on the waist and a clip for a holster capable of accommodating most UNSC sidearms.<ref name="journal"/><ref name="hals3"/>
Available on updated outer armor components of the Mark IV the magnetic strips are very small yet powerful magnets placed on the legs, waist, and back of the suit and is used to hold any equipment with a magnetic property. The suit also contains a magnet system on the boots of the MJOLNIR suit that allow its wearer to stay attached to a metal surface in zero-G environments and can be toggled on or off by the wearer. In addition to the magnetic holders, the default Mark IV is also equipped with utility pouches on the waist and a clip for a holster capable of accommodating most UNSC sidearms.{{Ref/Reuse|journal}}{{Ref/Reuse|hals3}}


*'''Biofoam injector port:'''
*'''Biofoam injector port:'''
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*'''Fission reactor:'''
*'''Fission reactor:'''
Integrated in the limited production model of the MJOLNIR PAA the nuclear fission reactor was the MJOLNIR armors source of power, the reactor was built into the suit and allowed for unlimited power. However, because of the delicacy and radioactive nature of the fission reactor its use was limited until it was replaced with a micro-fusion plant in the final production model in 2535.<ref name="Halo page 45"/><ref name="hals3"/>
Integrated in the limited production model of the MJOLNIR PAA the nuclear fission reactor was the MJOLNIR armors source of power, the reactor was built into the suit and allowed for unlimited power. However, because of the delicacy and radioactive nature of the fission reactor its use was limited until it was replaced with a micro-fusion plant in the final production model in 2535.{{Ref/Reuse|Halo page 45}}{{Ref/Reuse|hals3}}


*'''Microfusion reactor:'''
*'''Microfusion reactor:'''
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This system functions as a self-destruct mechanism in order to prevent a dead Spartan's armor from being compromised by hostiles. It is activated by a series of digits that only the Spartans know. When engaged, it produces a reactor overload that burns everything within a ten-meter radius, then produces a large blast.<ref>'''Halo: First Strike''', ''page 315''</ref>
This system functions as a self-destruct mechanism in order to prevent a dead Spartan's armor from being compromised by hostiles. It is activated by a series of digits that only the Spartans know. When engaged, it produces a reactor overload that burns everything within a ten-meter radius, then produces a large blast.<ref>'''Halo: First Strike''', ''page 315''</ref>


*'''Thruster pack''':
*'''Low-impulse propulsion jets''':
Located at the back of the suit beneath the fusion reactor, this component provides the ability to propel the MJOLNIR user over short distances and maneuver in zero-gravity environment.<ref name="TAS">'''[[Halo: The Fall of Reach - The Animated Series]]'''</ref><ref>'''Halo 4''', ''[[Prologue]]''</ref><ref>'''[[Halo Mythos]]''', ''page 61''</ref><ref group="note">The ''Halo 4'' Prologue cinematic and ''Halo: The Fall of Reach - The Animated Series'' depict the Mark IV with built-in thrusters. In the novels, however, the Mark IV is described as requiring a separate thruster pack attachment for maneuvering in a vacuum. [https://www.halowaypoint.com/en-us/universe/tech/jetpack Halo Waypoint notes] that integrated thruster packs were added in a later phase of MJOLNIR GEN2 upgrades (presumably in [[2558]]), despite the GEN2 models in ''Halo 4'' appearing to possess the hardware already. It is unlikely that the Mark IV would feature maneuvering jets only for the technology to be abandoned until GEN2's release. The depictions of the Mark IV with built-in thrusters may stem from the admittedly non-canonical use of John-117's unique Mark VI armor in the Prologue cinematic, while the use of built-in thrusters in ''Halo: The Fall of Reach - The Animated Series'' may be due to simplification for the sake of the visual medium.</ref>
Located at the back of the suit beneath the fusion reactor, this component provides the ability to propel the MJOLNIR user over short distances and maneuver in zero-gravity environment.<ref name="TAS">'''[[Halo: The Fall of Reach - The Animated Series]]'''</ref><ref>'''Halo 4''', ''[[Prologue]]''</ref><ref>'''[[Halo Mythos]]''', ''page 61''</ref>{{Ref/Note|The ''Halo 4'' Prologue cinematic and ''Halo: The Fall of Reach - The Animated Series'' depict the Mark IV with built-in thrusters. In the novels, however, the Mark IV is described as requiring a separate thruster pack attachment for maneuvering in a vacuum. [https://www.halowaypoint.com/en-us/universe/tech/jetpack Halo Waypoint notes] that integrated thruster packs were added in a later phase of MJOLNIR GEN2 upgrades (presumably in [[2558]]), despite the GEN2 models in ''Halo 4'' appearing to possess the hardware already. It is unlikely that the Mark IV would feature maneuvering jets only for the technology to be abandoned until GEN2's release. The depictions of the Mark IV with built-in thrusters may stem from the admittedly non-canonical use of John-117's unique Mark VI armor in the Prologue cinematic, while the use of built-in thrusters in ''Halo: The Fall of Reach - The Animated Series'' may be due to simplification for the sake of the visual medium. As ''Halo Mythos'' describes the thrusters as "low-impulse propulsion jets", it is likely that they are canonically inadequate for full EVA, which would require a dedicated thruster pack.}}


==Performance and durability==
==Performance and durability==
{{Quote|As I suspected, nothing but a man.|Atriox crushing Douglas-042's Mark IV helmet.<ref name="TS">''[[Halo Wars 2]]'', campaign level ''[[The Signal]]''</ref>}}
{{Quote|As I suspected, nothing but a man.|Atriox crushing Douglas-042's Mark IV helmet.<ref name="TS">''[[Halo Wars 2]]'', campaign level ''[[The Signal]]''</ref>}}
[[File:Chief gets hit by a Hunter shield.png|thumb|250px|Mark IV MJOLNIR armor taking a hit from a Mgalekgolo's shield.]]
[[File:Chief gets hit by a Hunter shield.png|thumb|250px|Mark IV MJOLNIR armor taking a hit from a Mgalekgolo's shield.]]
The Mark IV armor was the most advanced piece of military equipment humanity had created at the time of its distribution. This iteration of MJOLNIR is extremely resistant to gunfire, with most bullets simply bouncing off of the armor. Its gauntlets are also capable of shattering concrete without being damaged.<ref>'''Halo: The Fall of Reach''' ''page 134'' (Definitive edition)</ref> The armor is able to take the blunt force of a two-ton [[Mgalekgolo]]'s shield strike while simultaneously keeping the Spartan alive in the process.<ref name="FUD"/><ref>'''Halo: Ghosts of Onyx''' ''page 360''</ref> The helmet of Mark IV is extremely durable as well, being capable of withstanding the force of a gravity hammer swing by a Brute and sustaining the Spartan's life for a short period of time thereafter.<ref>''Halo Legends'', "The Babysitter"</ref> The armor itself, albeit able to withstand such heavy blows, is not designed to continuously withstand high pressure or power. Douglas' left shoulder was broken after Atriox's armored hand was able to break through his armor.
The Mark IV armor was the most advanced piece of military equipment humanity had created at the time of its distribution. This iteration of MJOLNIR is extremely resistant to gunfire, with most bullets simply bouncing off of the armor. Its gauntlets are also capable of shattering concrete without being damaged.<ref>'''Halo: The Fall of Reach''' ''page 134'' (Definitive edition)</ref> The armor is able to take the blunt force of a two-ton [[Mgalekgolo]]'s shield strike while simultaneously keeping the Spartan alive in the process.{{Ref/Reuse|FUD}}<ref>'''Halo: Ghosts of Onyx''' ''page 360''</ref> The helmet of Mark IV is extremely durable as well, being capable of withstanding the force of a gravity hammer swing by a Brute and sustaining the Spartan's life for a short period of time thereafter.<ref>''Halo Legends'', "The Babysitter"</ref> The armor itself, albeit able to withstand such heavy blows, is not designed to continuously withstand high pressure or power. Douglas' left shoulder was broken after Atriox's armored hand was able to break through his armor.


During the Skirmish over Netherop, the Spartans of Green Team, Gold Team, and Blue Team launched themselves from the ''Starry Night'' during the vessel's slingshot manoeuvre. Although they eventually yielded against an abrupt roll in their trajectory, the Spartans clutching one another in a swaying column behind their respective team leaders proved strong enough to hold fast in the moment of their linear course; despite having thirty gees of force being applied against them.<ref>'''Halo: Silent Storm, page 13'''</ref>
During the Skirmish over Netherop, the Spartans of Green Team, Gold Team, and Blue Team launched themselves from the ''Starry Night'' during the vessel's slingshot manoeuvre. Although they eventually yielded against an abrupt roll in their trajectory, the Spartans clutching one another in a swaying column behind their respective team leaders proved strong enough to hold fast in the moment of their linear course; despite having thirty Gs of force being applied against them.<ref>'''Halo: Silent Storm, page 13'''</ref>


On-board their targeted Covenant vessel, John displayed a level of strength sufficient to pry open one of the ship's interior iris hatch-panels with his bare hands.<ref>'''Halo: Silent Storm, page 43'''</ref> A month afterwards, in a Covenant space elevator near the planet Naraka, John used his armor's strength enhancements to launch a Covenant pickup vehicle onto the far side of a large conveyor belt - providing cover for an M41-equipped ODST to barricade himself behind.<ref>'''Halo: Silent Storm, page 345'''</ref> Later, in the upper-terminus leading to a transit tube, John encountered an emergency iris hatch - this time, denting the thick panels with a frustrated bang of his fist.<ref>'''Halo: Silent Storm, page 362'''</ref>
On-board their targeted Covenant vessel, John displayed a level of strength sufficient to pry open one of the ship's interior iris hatch-panels with his bare hands.<ref>'''Halo: Silent Storm, page 43'''</ref> A month afterwards, in a Covenant space elevator near the planet Naraka, John used his armor's strength enhancements to launch a Covenant pickup vehicle onto the far side of a large conveyor belt - providing cover for an M41-equipped ODST to barricade himself behind.<ref>'''Halo: Silent Storm, page 345'''</ref> Later, in the upper-terminus leading to a transit tube, John encountered an emergency iris hatch - this time, denting the thick panels with a frustrated bang of his fist.<ref>'''Halo: Silent Storm, page 362'''</ref>
Demonstrated during the Battle of Sigma Octanus IV, John-117, Kelly-087, and Fred-104 shifted a large, cuboid quartz monolith.<ref>''Halo: Fall of Reach - Covenant''</ref> Massing approximately 143 tonnes,<ref>''Halo: The Fall of Reach'' novel describes the monolith as being a 3x6 meter shard of silicon dioxide, which has a density of 2.65 tonnes per cubic meter.</ref> this performance of strength would require each MJOLNIR-equipped Spartan-II to apply an average force ranging from 19 to nearly 48 tonnes<ref>quartz-on-quartz is functionally similar to glass, which features a static friction coefficient ranging between [https://www.engineeringtoolbox.com/friction-coefficients-d_778.html 0.4 to 1.0µ].</ref> into the monolith.<ref group="note">This correlates well with the forces Blue Team resisted in their Mark IV MJOLNIR armor during the Skirmish over Netherop; where the Spartans experienced 30 gees of force against the slingshot maneuver from the ''Starry Night''.</ref>


Though if the armor takes damage it is no longer vacuum-sealed, this can be rectified using armor patches which seal the holes and make the armor vacuum-sealed again. Mark IV MJOLNIR armor is compatible with the patches used by [[ODST]]s on their armor, making it easier to get extras in a combat situation. This was used twice by [[Blue Team]] during the Attack on Naraka to seal their armor when going into vacuum after the armor had sustained such damage that it was no longer vacuum-sealed. The lack of armor patching during the [[Battle of Chi Ceti]] had forced [[Samuel-034]] to remain behind on the ''[[Unrelenting]]'' to die, causing the Spartans to start carrying armor patches in case such a situation ever arose again.<ref>'''[[Halo: Silent Storm]]'''</ref>
Though if the armor takes damage it is no longer vacuum-sealed, this can be rectified using armor patches which seal the holes and make the armor vacuum-sealed again. Mark IV MJOLNIR armor is compatible with the patches used by [[ODST]]s on their armor, making it easier to get extras in a combat situation. This was used twice by [[Blue Team]] during the Attack on Naraka to seal their armor when going into vacuum after the armor had sustained such damage that it was no longer vacuum-sealed. The lack of armor patching during the [[Battle of Chi Ceti]] had forced [[Samuel-034]] to remain behind on the ''[[Unrelenting]]'' to die, causing the Spartans to start carrying armor patches in case such a situation ever arose again.<ref>'''[[Halo: Silent Storm]]'''</ref>
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==In-game information==
==In-game information==
===''Halo 5: Guardians''===
===''Halo 5: Guardians''===
'''Unlock''': Mythic [[REQ]] card
The Mark IV helmet and body armor are unlockable as [[Armor customization (Halo 5: Guardians)|armor permutations]] through the [[Requisition system]]. It only has one alternate skin, Arcadia.
*Helmet Description: A battered Mark IV helmet once worn by the Master Chief is the last thing that SPARTAN-IV candidates see before beginning their grueling evaluation and preliminary augmentation cycle.
 
*Body Description: As the basis for the GEN1 Mjolnir standard, many components of the original Mark IV can be used with GEN2 techsuits and VISRs after firmware updates. This hybrid GEN2/MARK IV [GEN1] suit is still used by select Spartan-II's.
{| class="wikitable" style="width: 75%;"
'''Available Skins''': Arcadia<br>
! style="width: 15%"|Armor
'''Arcadia Unlock''': Mythic REQ card<br>
! style="width: 70%"|Description
! style="width: 15%"|Unlock requirements
|- align="center"
|[[File:H5G-Helmet-MarkIV.png|100px]]<br/>Mark IV GEN1 (helmet)
|rowspan="2" align="left"|A battered Mark IV helmet once worn by the Master Chief is the last thing that SPARTAN-IV candidates see before beginning their grueling evaluation and preliminary augmentation cycle.
|rowspan="2" align="left"|Legendary/Mythic [[List of REQ cards|REQ card]]
|- align="center"
|[[File:H5G REQ Helmets Mark IV GEN1 Arcadia Legendary.png|100px]]<br/>Mark IV GEN1 Arcadia (helmet skin)
|- align="center"
|[[File:H5G-Armor-MarkIV.png|100px]]<br/>Mark IV GEN1 (body)
|rowspan="2" align="left"|As the basis for the GEN1 Mjolnir standard, many components of the original Mark IV can be used with GEN2 techsuits and VISRs after firmware updates. This hybrid GEN2/MARK IV [GEN1] suit is still used by select Spartan-II's.
|rowspan="2" align="left"|Legendary/Mythic [[List of REQ cards|REQ card]]
|- align="center"
|[[File:REQ Card - Armor Mark IV GEN1 Arcadia.png|100px]]<br/>Mark IV GEN1 Arcadia (body skin)
|}
===''Halo Infinite''===
The Mark IV core was unlocked by default in [[CU29]].
{| class="wikitable" style="width: 75%;"
! scope="col" style="width: 15%" |Armor
! scope="col" style="width: 15%" |Manufacturer
! scope="col" style="width: 45%" |Lore
! scope="col" style="width: 10%" |Rarity
! scope="col" style="width: 15%" |Unlock Requirements
|-
|align="center"|[[File:HINF MarkIV Core Icon.png|75px]]<br/>Mark IV armor core
|Materials Group
|Stocks of Mark IV armor recovered from the Damascus archives have now been rebuilt under the direction of Dr. Halsey. These refits are fully compatible with official GEN2 and GEN3 standards but Halsey has her own ideas about the next step for Mjolnir.
|Epic
|rowspan="5"|
Unlocked by default during CU29
|-
|align="center"|[[File:HINF-MarkIVhelmet.png|75px]]<br/>Mark IV helmet
|Materials Group
|The Halsey-refit Mark IV helmets are masterpieces of military engineering. Each is a refurbished Covenant War-era relic, stripped down and packed with the latest Mjolnir technology.
|Common
|-
|align="center"|[[File:HINF-LIMAGarita.png|75px]][[File:HINF-RIMAGarita.png|75px]]<br/>IMA/Garita
|UNSC
|Built for war.
|Common
|-
|align="center"|[[File:HINF-MarkIVgloves.png|75px]]<br/>Mark IV gloves
|Materials Group
|Existing stocks of Mark IV armor have been recovered by the UNSC and rebuilt under the direction of Dr. Halsey. These refits are not fully compatible with official GEN2 and GEN3 standards as Halsey has her own ideas about the next step for Mjolnir.
|Common
|-
|align="center"|[[File:HINF-UASopron.png|75px]]<br/>UA/Sopron
|Materials Group
|Supplemental armor plating
|Common
|-
|align="center"|[[File:HINF-IMAGaritaOmega.png|75px]]<br/>IMA/Garita Omega
|UNSC
|Omega Team was present at the last stand of many once-great colonies. Through storms of glass and blazing atomic fire they bought time and saved what they could.
|Legendary
|Purchase "Valiant" Bundle from the Shop for 1,800 cR
|-
|align="center"|[[File:HINF-IMAGaritaOmegaSykes.png|75px]]<br/>IMA/Garita Omega Sykes
|UNSC
|Omega Team enforced the UNSC's draconian last-stand protocols in the darkest days of the Covenant War. Nothing of strategic value could fall into the hands of the Covenant, and the soft sound of metal leaving a sheath meant death followed.
|Legendary
|Purchase "Ardent" Bundle from the Shop for 1,800 cR
|-
|align="center"|[[File:HINF-TACGaritaOmega.png|75px]]<br/>Tac/Garita Omega
|UNSC
|A sharp blade never runs out of ammo, doesn't need to recharge, and can't be disabled by EMP. It can be gripped even when mortally wounded and the Mjolnir's power has failed. It can never betray you or be turned by the Flood. And yet, some in the UNSC are surprised by the rapid adoption and popularity of knife-fighting skills among Spartans.
|Legendary
|Purchase "Paladin" Bundle from the Shop for 1,800 cR
|}


==Trivia==
==Trivia==
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==Gallery==
==Gallery==
===Production===
===Illustrations===
Early drawings and renders of Mark IV that did not make the cut into the relevant media.
<gallery>
File:John117FOReach.png|John-117 wearing the Mark IV on the cover for the 2010 reprint of ''[[Halo: The Fall of Reach]]''.
File:The Covenant - MJOLNIR.jpg|John-117 in his newly issued MJOLNIR armor in ''[[Halo: Fall of Reach]]''.
File:MJOLNIR_MARK_IV_ARMOUR.png|The MJOLNIR Mark IV in ''[[Halo: The Fall of Reach - The Animated Series]]''.
File:TFS-Jeromethrusters.png|Jerome-092 using his Mark IV's thrusters in ''[[Something has Happened]]''.
File:Halo_Complete_Video_Collection_full_cover.jpg|John-117 wearing his unidentified Mark IV variant on the cover of ''[[Halo: The Complete Video Collection]]''.
File:HCD Blue Team.png|Blue Team's Cobalt Mark IVs in ''[[Halo: Collateral Damage]]''.
File:Oblivionart.PNG|John-117 Cobalt Mark IV on the cover of ''[[Halo: Oblivion]]''.
File:Enc22-SpartanIIs.jpg|Spartan-IIs in various Mark IV armors in the ''[[Halo Encyclopedia (2022 edition)]]''.
</gallery>
 
===''Halo Wars''===
;Development images
<gallery>
<gallery>
File:XHW - unscunit.jpg|An early model of the MJOLNIR in ''Halo Wars'' alongside a [[Hellbringer]].
File:XHW - unscunit.jpg|An early model of the MJOLNIR in ''Halo Wars'' alongside a [[Hellbringer]].
File:HW Spartan PromoArt.jpg|An early piece of promotional art for ''Halo Wars'', used for internal briefs for Microsoft.
File:HW Spartan PromoArt.jpg|An early piece of promotional art for ''Halo Wars'', used for internal briefs for Microsoft.
File:HW EarlySpartan Poster Concept.jpg|The full poster.
File:HW_Mjolnir_EarlyRender.jpg|Another early render of the ''Halo Wars'' Mark IV.
File:HW_Mjolnir_EarlyRender.jpg|Another early render of the ''Halo Wars'' Mark IV.
File:HW_Mjolnir_Render.jpg|A concept of the ''Halo Wars'' Mark IV.
File:HW_Mjolnir_Render.jpg|A concept of the ''Halo Wars'' Mark IV.
Line 273: Line 379:
File:XHW - spartan03.jpg|A later pass on the MJOLNIR design from ''Halo Wars''.
File:XHW - spartan03.jpg|A later pass on the MJOLNIR design from ''Halo Wars''.
File:Mjolnir MkIV.png|An early version of the Mark IV for the Blur cutscenes in ''Halo Wars''.
File:Mjolnir MkIV.png|An early version of the Mark IV for the Blur cutscenes in ''Halo Wars''.
File:Halo Character Spartan Render.jpg|An early version of the Mark IV for the Blur cutscenes in ''Halo Wars''.
</gallery>
;Screenshots and renders
<gallery>
File:MarkIV render.png|[[Jerome-092]] wearing his Mark IV armor.
File:Alice-130.png|[[Alice-130]] wearing her early Mark IV armor.
File:Douglas-042.png|[[Douglas-042]] wearing his early Mark IV armor.
File:HWunit Spartan.png|In-game model of a Spartan's armor in ''Halo Wars''. The pauldrons are symmetrical in-game.
File:HW BlurSpartan Render Light Front.jpg|A render of the final Mark IV model used in the Blur Studios cutscenes for the game.
File:HW BlurSpartan Render Light Back.jpg|A render of the final Mark IV model used in the Blur Studios cutscenes for the game.
File:HW BlurSpartan Render Dark Front.jpg|A render of the final Mark IV model used in the Blur Studios cutscenes for the game.
File:HW BlurSpartan Render Dark Back.jpg|A render of the final Mark IV model used in the Blur Studios cutscenes for the game.
</gallery>
 
===''Halo Legends''===
<gallery>
File:ThePackage John117 Concept.png|Concept art of the Mark IV version featured in ''[[Halo Legends]]'': ''[[The Package (animated short)|The Package]]''.
File:ThePackage John117 Concept.png|Concept art of the Mark IV version featured in ''[[Halo Legends]]'': ''[[The Package (animated short)|The Package]]''.
File:H5GC-MarkIV.jpg|Concept art of the Mark IV for ''[[Halo 5: Guardians]]''.
File:The Package poster.jpg|John-117, Kelly-087, and Fred-104 wearing the Mark IV armor with MOS-specific modifications in ''The Package''.
File:Omega Team.png|Concept art of Omega Team's Mark IV for ''[[Halo Wars 2]]''.
File:The Babysitter Cal-141.jpg|[[Cal-141]] wearing the Mark IV armor on [[Heian]] in ''[[The Babysitter]]''.
</gallery>
</gallery>


===Normal gallery===
===''Halo 4''===
<gallery>
<gallery>
File:Douglas-042.png|[[Douglas-042]] wearing early Mark IV armor.
File:HWunit Spartan.png|In-game model of a Spartan's armor in ''Halo Wars''. The pauldrons are symmetrical in-game.
File:MarkIV render.png|[[Jerome-092]] in his first-generation suit.
File:The Package poster.jpg|Three Spartans wearing the previous suit with MOS-specific modifications.
File:The Babysitter Cal-141.jpg|[[Cal-141]] wearing a suit resembling the original model on [[Heian]] in ''[[The Babysitter]]''.
File:John117FOReach.png|John-117 wearing the Mark IV on the 2010 reprint of ''Halo: The Fall of Reach''.
File:The Covenant - MJOLNIR.jpg|John-117 in his newly issued MJOLNIR armor in ''[[Halo: Fall of Reach]]''.
File:H4L Awakening 1.jpg|[[John-117]] being equipped with his original MJOLNIR armor in ''[[Scanned]]''.
File:H4L Awakening 1.jpg|[[John-117]] being equipped with his original MJOLNIR armor in ''[[Scanned]]''.
File:H4L Awakening 2.jpg|Technicians securing the back section of John's MJOLNIR.
File:H4L Awakening 2.jpg|Technicians securing the back section of John's MJOLNIR in ''Scanned''.
File:Covenant assault - Aftermath.png|John-117 wearing the non-canonical Mark IV design from ''Halo 4''<nowiki>'</nowiki>s [[Prologue]].<ref group="note">[[Josh Holmes]] has [https://web.archive.org/web/20160413032116/https://twitter.com/JoshingtonState/status/474224115608731650 confirmed] that the use of John-117's unique Mark VI model to represent the Mark IV in ''Halo 4'''s Prologue cinematic is not canon. The geometry was recycled because the production team did not have time to create a unique Mark IV model that would have only seconds of screen time. ''[[Halo 4: The Essential Visual Guide]]'' notes that John's upgraded Mark VI suit resembles an earlier Mark IV line (likely as a tongue-in-cheek nod to the cutscene), though this does not mean that the two designs are canonically identical. The cutscene uses the same model to represent the Mark V suit John canonically wore when he met [[Cortana]], further invalidating its canonicity.</ref>
File:H4 ConceptArt MarkIV.png|Concept art of Mark IV for multiplayer.
File:Spartan-II defense - 2.png|A team of Spartans in the non-canonical ''Halo 4'' armor.
File:Covenant assault - Aftermath.png|John-117 wearing the non-canonical Mark IV design from ''Halo 4''<nowiki>'</nowiki>s [[Prologue]].{{Ref/Note|[[Josh Holmes]] has [https://web.archive.org/web/20160413032116/https://twitter.com/JoshingtonState/status/474224115608731650 confirmed] that the use of John-117's unique Mark VI model to represent the Mark IV in ''Halo 4'''s Prologue cinematic is not canon. The geometry was recycled because the production team did not have time to create a unique Mark IV model that would have only seconds of screen time. ''[[Halo 4: The Essential Visual Guide]]'' notes that John's upgraded Mark VI suit resembles an earlier Mark IV line (likely as a tongue-in-cheek nod to the cutscene), though this does not mean that the two designs are canonically identical. The cutscene uses the same model to represent the Mark V suit John canonically wore when he met [[Cortana]], further invalidating its canonicity.}}
File:MJOLNIR_MARK_IV_ARMOUR.png|The MJOLNIR Mark IV in ''[[Halo: The Fall of Reach - The Animated Series]]''.
File:Spartan-II defense - 2.png|A team of Spartans in the non-canonical ''Halo 4'' Mark IV armor.
File:H5G-MarkIVmodels.jpg|Models of the Mark IV for ''[[Halo 5: Guardians]]''.
</gallery>
File:H5G-Mark IV screenshot.png|A Spartan-IV wearing the hybrid (GEN2)/Mark IV (GEN1) in ''Halo 5: Guardians''.
 
File:H5G-MarkIV.png|Front and back of the Mark IV for ''Halo 5: Guardians''.
===''Halo 5: Guardians''===
File:H5G-Helmet-MarkIV.png|REQ Card for the MJOLNIR Mark IV helmet.
<gallery>
File:H5G-Armor-MarkIV.png|REQ Card for the MJOLNIR Mark IV armor.
File:H5GC-MarkIV.jpg|Concept art of the Mark IV [GEN1] armor.
File:H5G-MarkIVSpartanemblem.png|The Spartan emblem on the Mark IV armor in ''Halo 5: Guardians''.
File:H5G-MarkIVmodels.jpg|Renders of the Mark IV [GEN1] armor.
File:H5G-MarkIVArcadia.png|Mark IV Arcadia.
File:H5G-Mark IV screenshot.png|A Spartan-IV wearing the Mark IV [GEN1] armor.
File:TFS-Jeromethrusters.png|Jerome-092 using his Mark IV's thrusters in ''[[Something has Happened]]''.
File:H5G-MarkIV.png|Render of the Mark IV [GEN1] armor.
File:HW2-Shadows.png|Red Team wearing MJOLNIR Mark IV in ''[[Halo Wars 2]]''.
File:H5G-MarkIVSpartanemblem.png|The Spartan emblem printed on the Mark IV [GEN1] armor.
File:H5G-MarkIVArcadia.png|Render of the Mark IV [GEN1] Arcadia armor.
</gallery>
 
===''Halo Wars 2''===
<gallery>
File:HW2 RedTeam-MarkIV Concept.jpg|Concept art of Red Team's Mark IV.
File:HW2-OmegaTeamConcept1-TheoS.png|Concept art of Omega Team's Mark IV.
File:HW2-Shadows.png|Red Team wearing MJOLNIR Mark IV.
File:HW2-Knivesstilldonothing.png|Douglas-042's Mark IV being crushed by [[Atriox]]'s power gauntlet.
File:HW2-Knivesstilldonothing.png|Douglas-042's Mark IV being crushed by [[Atriox]]'s power gauntlet.
File:HW2-BrokenMarkIV.png|Douglas-042's Mark IV helmet is crushed by Atriox.
File:HW2-BrokenMarkIV.png|Douglas-042's Mark IV helmet is crushed by Atriox.
File:HW2 Blitz Jerome-092.png|Jerome-092's GEN2 Mark IV in-game.
File:HW2-Jerome-03.jpg|Jerome-092's GEN2 Mark IV in cutscenes.
File:HW2-Jerome-03.jpg|Jerome-092's GEN2 Mark IV in cutscenes.
File:HW2 - Douglas-042 with Mark IV-GEN2 hybrid armor.jpg|Douglas-042's GEN2 Mark IV in-game.
File:HW2 Halo - Red Team In-game.png|In-game view of Red Team in their Mark IV armor.
File:HW2 Blitz Jerome-092.png|Blitz card art of Jerome-092's GEN2 Mark IV.
File:HW2 - Douglas-042 with Mark IV-GEN2 hybrid armor.jpg|Blitz card art of Douglas-042's GEN2 Mark IV.
File:HW2-Omega.jpg|Blitz card of Omega Team's customized Mark IV.
File:HW2-Omega.jpg|Blitz card of Omega Team's customized Mark IV.
File:Halo_Complete_Video_Collection_full_cover.jpg|John-117 wearing his unidentified Mark IV variant on the cover of [[Halo: The Complete Video Collection]].
</gallery>
File:HCD Blue Team.png|Blue Team's Cobalt Mark IVs in ''[[Halo: Collateral Damage]]''.
 
File:Oblivionart.PNG|John-117 wearing his Mark VI-like Mark IV on the cover of ''[[Halo: Oblivion]]''.
===''Halo Infinite''===
<gallery>
File:HINF Concept MarkIVHelmets.jpg|Concept art of various helmets for the Mark IV armor core in ''[[Halo Infinite]]''.
File:HINF Concept MarkIVHelmetAttachments.png|Concept art of various helmet attachments for the Mark IV core helmets.
File:HINF Concept MarkIVArmors.jpg|Concept art of armor for the Mark IV core.
File:HINF Concept MarkIV3.jpg|More concept art of armor for the Mark IV core.
File:HINF Concept MarkIV4.jpg|More concept art of armor for the Mark IV core.
File:HINF Concept MarkIV5.jpg|More concept art of armor for the Mark IV core.
File:HINF Concept MarkIV6.jpg|More concept art of armor for the Mark IV core.
File:HINF Concept MarkIVGloves.jpg|Concept art of the default gloves for the Mark IV core.
File:HINF Concept MarkIVGloves2.png|Concept art of more gloves for the Mark IV core.
File:HINF Concept MarkIVProsthesis.jpg|Concept art of the [[Artificial limb|prosthetic limb]]s for the Mark IV core.
File:HINF - CU29 MarkIV.jpg|First look at the default Mark IV armor core.
File:HINF MarkIVSpartans.jpg|Several Spartans wearing the Mark IV core.
File:HINF-OmegaTeamcosplayers.png|Omega Team's Mark IV armors.
File:HINF SpiritOfFireScorpion.jpg|Spartans wearing Mark IV alongside several Marines.
</gallery>
</gallery>


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*''[[Halo: Fall of Reach]]''
*''[[Halo: Fall of Reach]]''
**''[[Halo: Fall of Reach - Covenant|Covenant]]''
**''[[Halo: Fall of Reach - Covenant|Covenant]]''
{{col-2}}
*''[[Halo 4: Forward Unto Dawn]]''
*''[[Halo 4: Forward Unto Dawn]]''
*''[[Scanned]]''
*''[[Scanned]]''
*''[[Halo 4]]'' {{C|[[Prologue]] only}}
*''[[Halo 4]]'' {{C|[[Prologue]] only}}
{{col-2}}
*''[[Halo: Nightfall]]''
*''[[Halo: Nightfall]]''
*''[[Halo 2: Anniversary]]''
*''[[Halo 2: Anniversary]]''
**''[[Terminal/Halo 2: Anniversary|Terminals]]''
**''[[Terminal (Halo 2: Anniversary)|Terminals]]''
*''[[Halo: The Fall of Reach - The Animated Series]]''
*''[[Halo: The Fall of Reach - The Animated Series]]''
*''[[Halo 5: Guardians]]''
*''[[Halo 5: Guardians]]''
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*''[[Halo: Official Spartan Field Manual]]''
*''[[Halo: Official Spartan Field Manual]]''
*''[[Halo: Oblivion]]''
*''[[Halo: Oblivion]]''
*''[[Halo: Meridian Divide]]''
*''[[Halo: Shadows of Reach]]'' {{Mo}}
*''[[Halo: Divine Wind]]''
*''[[Halo: The Rubicon Protocol]]'' {{Im}}
*''[[Halo Infinite]]''
{{col-end}}
{{col-end}}


==Notes==
==Notes==
<references group="note"/>
{{Ref/Notes}}


==Sources==
==Sources==
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{{armor}}
{{armor}}


{{Armor/Permutation}}
{{Armor/Permutation|H5G|HI}}
{{Mjolnir}}
{{Navbox/Universe/Mjolnir|Overview|GEN1|GEN2}}
[[Category:MJOLNIR Armor]]
[[Category:MJOLNIR armor]]
[[Category:Halo 5: Guardians multiplayer armor permutations]]
[[Category:Halo Infinite multiplayer armor permutations]]

Latest revision as of 14:08, April 20, 2024

MJOLNIR Powered Assault Armor
GEN2
H5G-MarkIV.png
GEN1
Douglas-042.png
Production overview

Manufacturer(s):

Materials Group

Testing site(s):

Damascus Testing Facility

Type:

MJOLNIR Powered Assault Armor

Role(s):

General combat

 

"You're the only ones who can use them, Petty Officer. Who else could we give them to?"
Doctor Catherine Halsey to John-117.[1]

Despite its name, MJOLNIR Powered Assault Armor Mark IV was the first production model of MJOLNIR Powered Assault Armor. The suit was issued to Spartan-II commandos on November 27, 2525,[2] and was in service until it was replaced by the Mark V on November 24, 2551.[3][Note 1] A hybrid variant could still be requisitioned by Spartan personnel as late as October 2558, albeit upgraded to function with the MJOLNIR [GEN2] suite; such suits are notably still used by select Spartan-IIs.[4] With the advent of the MJOLNIR [GEN3] in 2559, the Mark IV was upgraded to be fully compatible with the new platform, and it can be requisitioned by Spartan personnel as late as 2560.[5][6]

Introduction[edit]

Diagram of the Mjolnir Mark IV.

Developed parallel to the SPARTAN-II program[7] by the Office of Naval Intelligence's Materials Group, the MJOLNIR powered assault armor was a radical redesign from previous large, bulky exoskeletons, streamlining their design into a compact suit of armor practical for use in the field. The brainchild of Dr. Catherine Halsey, the MJOLNIR armor represented her vision of creating a slim powered exoskeleton capable of taking full advantage of the physical capabilities of a SPARTAN-II.[7] Planning and research for the revised MJOLNIR battlesuit began in 2511[8] alongside the SPARTAN-II project; over the course of 14 years, its development gave birth to many new technologies that would later see major adoption throughout the military.

MJOLNIR is a sealed system capable of extra-vehicular activity or operations in toxic atmosphere and vacuum. It is hardened against electromagnetic pulse and radiation, and has filters that are completely effective at removing toxins and bacteria from local atmosphere.[9][10]

The armor's outer shell is composed of a multilayer alloy of remarkable strength which has been augmented with a refractive coating capable of dispersing a limited amount of Covenant energy weapon impact.[9][11] Underneath the alloy shell is a thick black armored titanium nanocomposite bodysuit. Underneath that layer is a gel-filled layer. The gel layer regulates temperature and can reactively change its density in a few seconds.[9][11] The inner skinsuit is made of a moisture-absorbing synthetic material linked to an environmental control computer and the occupant's special-issue neural interface.[9][11] This network translates electrochemical signals to digital code and routes them through an interface connection at the rear of the skull.[9] Through this interface the user's thoughts commands the armor's movement and weapons and input from the on-board sensors comes directly to the user's mind.[9] The synthesis of machine and mind is so fast that it is almost impossible to chart the reaction time. Unfortunately, the system is so reactive that normal human beings cannot use the suit without injuring or even killing themselves. Only humans who have undergone the skeletal, neural and muscular augmentation shared by the Spartans are able to safely operate the suit.[1]

Sandwiched between the external armor and the internal padding is the most devastating weapon the suit carries: a layer of polymerized lithium niobocene, a form of reactive metal liquid crystal.[9] Woven by molecular tools into a super-dense layer, this layer is amorphous, yet it amplifies force, doubling lifting capability and increases reaction time by a factor of five.[7] Such technology did not exist when work began on the Mark I prototypes.[7][12]

Because of these advancements, the design is more akin to a conventional suit of armor as opposed to a powered exoskeleton; the user moves the suit and in return the suit moves the user. This allows for a highly compact design when compared to other combat systems. The armor contains numerous features including an integrated computer system which continuously monitors weapons and biological functions, as well as a limited function motion sensor system. The suit also contains a built-in rebreather system that can provide air for up to 90 minutes.[10] The suit's helmet also features imaging and video recording, and thermal sensors among other features.

In its final phase, the armor weighs half a short ton (453.6 kilograms).[13] At the time of its creation, it was the most advanced piece of tactical military hardware in human hands.[9]

Development[edit]

A Mjolnir schematic dated September 25, 2524.[Note 2]

The Mark IV underwent several generational design changes throughout the Human-Covenant War, becoming a testbed for new technologies and hardware to help improve its integrity and efficiency in certain combat conditions.[14] While some of these variants are rumors and have never been witnessed in the field, others have become common knowledge.[15] 14 variants had been developed by January 7, 2535.[16] The armor's external design went through multiple iterations;[17] variants designed for a specific purpose tend, by necessity, to look different from the contemporary core model.[18] However, each generational "Mark" is categorized by its internal components and software suite, not by its superficial appearance; therefore, while some Mark IV suits may look drastically different from one another, they are still essentially the same model.[18]

In February 2525, Naval Special Warfare received a prototypical suit for evaluation and final testing. Over the next four months, the unit was tested to ensure proper function and to evaluate its capabilities. However, the prototype was built and fine-tuned for the SPARTAN-II supersoldiers. When a test was conducted to see if a normal human could operate the suit, an override meant to prevent unintended use led to the operator being killed by his own muscular twitches.[1][19] A short time after the failed demonstration limited production of the MJOLNIR battlesuit was approved.[19]

MJOLNIR was first issued to the Spartan-IIs on November 27, 2525.[2] Numerous variant models, including the skunkworks Project COBALT,[20] had been introduced by April 2526.[21][22]

By 2535, the MJOLNIR system had become the single most expensive item ever produced by the UNSC,[23] with each suit costing as much as a destroyer to manufacture.[24] Although the project had been intended as a continuous, pioneering effort to shatter technological barriers,[24] on or shortly before January 7, the budgetary commission overseeing the MJOLNIR project mandated a simplified generational system to categorize, prioritize, and serialize development neatly into fiscal-year budgets. Thus the "Mark" system was introduced, with the systems developed thus far being retroactively designated "Mark IV" to suggest continuity with the powered exoskeleton program that had preceded MJOLNIR's development.[25]

Shortly after the budgetary meeting, Dr. Halsey brainstormed numerous improvements for the project going forward (including a number of design sketches), ranging from the now-redesignated Mark IV through the then-hypothetical Mark VII. Her conception for the Mark IV included technologies not available at the beginning of the war, including a standardized vacuum survival system, standard fusion power, and a new radar sensory package.[25]

Advanced Hardware Program[edit]

The MJOLNIR Advanced Hardware Program concerns the development and furthering of hardware and technologies for testing, evaluation, and incorporation into later versions of the Mjolnir armor. The original goal of the program was to produce new technologies to aid the Spartan-IIs in the war against the Covenant,[15] such as the prototypical energy shielding tested as early as 2531.[26][27] Any changes in appearance of the armor are for research and development of future MJOLNIR components.[15]

Suits[edit]

The MJOLNIR Mark IV platform used several armor and helmet configurations during its service.[Note 3]

Base suit[edit]

This suit was issued to the Spartan-IIs during the Battle of Chi Ceti in November 2525.

Variants[edit]

Halo: The Fall of Reach - The Animated Series screenshot
Various Mjolnir designs worn by Blue Team during the Battle of Chi Ceti.

Project: COBALT[edit]

Project: COBALT introduced a new Mjolnir chassis for Blue Team early in the Human-Covenant War.[20]

Unidentified variants[edit]

  • Argus-like variant: Linda-058 wore this helmet during the Battle of Chi Ceti. It is very similar in appearance to the Mark VI and GEN2 Argus helmets she would later wear.
  • Centurion-like variant: Fred-104 wore this helmet during the Battle of Chi Ceti. It is very similar in appearance to the Mark VI and GEN2 Centurion helmets he would later wear.
  • CQB-like variant: Though the CQB variant proper did not enter service until 2535, the helmet's physical architecture saw use as early as 2525,[33]
  • EVA-like variant: A Spartan-II was issued this helmet during the Battle of Chi Ceti.
  • Hermes-like variant: Kelly-087 wore this helmet during the Battle of Chi Ceti. It is very similar in appearance to the GEN2 Hermes helmet she would later wear.
  • Unspecified variant: During the Battle of Chi Ceti, a Spartan-II tested out this helmet.

Mark-V(B)-like suit[edit]

Designs similar to the later MJOLNIR/B variant saw use in April 2526.

Variants[edit]

Unidentified suit[edit]

  • Air Assault-like: During the Battle of Circinius IV in April 2526, Kelly-087 utilized a variant that had similar architecture to Air Assault armor (introduced in 2535). She wore the helmet in conjunction with the Mark IV (b) armor.[22]

Mark-VI-like suits[edit]

Variants resembling the later Mark VI saw use as early as April 2526.

Variants[edit]

  • MJOLNIR/V - EVA - Variant that specialized to improve survivability of Spartans when performing extra-vehicular activity in vacuum.

Unidentified variants[edit]

  • Mark VI-like variant (2526): John-117 was outfitted with this variant during at least three separate engagements during the Human-Covenant War. Considerably slimmer than Mjolnir's initial production model, this variant bears a strong resemblance to the later Mark VI, especially the Mark VI GEN3 suit he would eventually wear.

Unknown Mark IV suit[edit]

GEN2[edit]

Hybrid GEN2/MARK IV [GEN1][edit]

After the Human-Covenant War, a GEN2 variant was developed that uses many components of the original Mark IV armor after firmware updates. This suit is still used as of October 2558,[4] with Tom-B292 using the armor's forearms.[36]

Red Team's hybrid GEN2/MARK IV[edit]

After Douglas-042's Mjolnir Mark IV armor was damaged by Atriox in May 2559, core components of the suit could not be replicated by the Spirit of Fire. Red Team took advantage of the GEN2 parts recovered from UNSC outposts, reverse-engineered solutions developed by Serina, and deft modifications made by Isabel to stay in the fight. The potential amalgamation of these changes could lead to completely new design permutations, customized for the needs of each Spartan.[37][Note 6]

Non-canon and dubious canon appearances[edit]

Silver Timeline Variants[edit]

Inner armor components[edit]

  • Inner skinsuit:

The inner skinsuit is made of a moisture-absorbing synthetic material linked to an environmental control computer and the occupant's neural interface. It controls the suit's temperature and actively changes how the suit fits the user.[1]

On top of the inner skinsuit is a gel-filled layer, which regulates the temperature of the suit and can change its density to conform to the wearer's shape. The temperature inside the suit is controlled by the moisture absorbing cloth suit underneath the hydrostatic layer. The hydrostatic gel layer can also be pressurized to various levels to potentially save the wearers life should the wearer be subjected to high G forces or a high velocity impact; however, over-pressurizing this layer can cause nitrogen embolisms.[40][41]

Fitted in between the outer plates and the inner padding, is a layer of liquid crystal within a piezoelectric material that deforms along a preferred axis when exposed to an electric charge.[42] This layer acts as a sheath or a suit artificial muscle; this reactive piezoelectric effect increases the strength, reaction time, mobility, speed, and all around physical performance of the suit's user.[42] The material is amorphous, thus circumventing a major obstacle in its design: custom-fitting millions of the polygonal pieces under the second armor layer.[43] Knitted together at a molecular level the liquid crystal material is merely "poured" into a multilayered Sierpinski capillary system where microelectric fields can direct crystallization geometries.[43] The only downfall is the materials production, which involves classified super-toxic precursor materials and requires a zero-gravity environment.[43]

The pressure seal is a vital component to the MJOLNIR system as it keeps the system airtight whether underwater, in vacuum, or in a hostile atmosphere. The seal is very strong and will only break under extreme pressure, such as in a high velocity impact or when the hydrostatic gel has been over-pressurized.[citation needed]

  • Titanium nanocomposite bodysuit:

Sandwiched between the external armor and the internal padding is a thick, black armored bodysuit. This suit has numerous functions, small but vital to the safety and survival of the wearer. The bodysuit is made of a titanium-based material, making it very strong and yet very flexible. It also serves as another layer of protection against ballistics attacks and is coated with a heat resistant material to disperse heat from plasma weapons.[44]

  • Lock-down system: The lock-down system protects muscles and joints from traumatic, high-impact injuries by seizing the suit into a rigid posture through modifying the density of the hydrostatic gel layer.[45][46][47][48][Note 7]

Outer shell and components[edit]

The outer shell of the MJOLNIR armor is comprised of a thick titanium alloy. This alloy is very resilient, being nearly impervious to small arms fire. While enough impacts from armor-piercing rounds will breach the outer shell, the suit can take a few glancing blows from them without compromising the armor. The outer shell of the MJOLNIR suit is covered with a refractive coating to help disperse the heat discharged by Covenant energy weapons. However, one or two direct hits from any plasma weapon will compromise the armor plating.[44]

  • Integrated Communications Helmet:

The MJOLNIR helmet (properly the Integrated Communications Helmet) is one of the most vital aspects to the MJOLNIR armor system. It is made of titanium and features a heads-up display (HUD) that links to the brain and hands; the HUD can identify equipment and display information about it when it is picked up by the wearer. It also features an environmental control unit that includes filters to remove toxins from the atmosphere, as well as a rebreather to automatically supply oxygen to the wearer during EVA. In addition the helmet contains thermal and motion sensors, communications, solar-powered lighting, and imaging and video gear.[25]

The helmet's most important feature is the direct neural-interface system which connects to a Spartan's neural implants. Two core processor chips are implanted into the subject's skull in the rear of the head. This is essentially comparable to an on-board computer using parts of the human brain for processing - when the connector at the rear of the subject's head and receptors in the brain link to the helmet's on-board sensors it creates the neural link needed to move the MJOLNIR suit.[25]

The first-generation helmet was retained for use with the 2535 model[49] and was later upgraded for use with the Mark V.[50]

  • Titanium alloy outer shell/chest:

The titanium chest plating provides maximum ballistics protection across all generations of the Mark IV. The original version consisted of wide plating to allow for free rotation of the head and neck; the external microphone was located below the collar area and below that an environmental control unit. This model also had large arm sockets and the waist area consisted of free-rotating bearings which lock into the lower body or jumper armor section. Later versions of the chest plates are more angular and are joined via a hinge system on both the central brace and the shoulder connectors, allowing them to rise and fall with the user's movements.[25]

  • Titanium alloy outer shell/arms:

The first version's shoulder and arm plating consisted of an organic shape with larger shoulder area for ample protection; the upper assembly piece sat flush inside the upper-arm armor. The elbow armor was hinged to fit flush when the wearer's arm was straight, making hyperextension impossible without force adequate to destroy the plating. The forearm armor is the same with locking pieces to prevent over-rotation and the lower portion is attached to the handguard. The range of motion is adequate for firearm use and hand-to-hand combat, however the guard prevents hyperextension of the wrist. Later revisions to this armor discard this for more nanofabricated pieces and more mobility focused plating. The pauldrons are mounted at a downwards diagonal angle at the upper edge of the shoulder, independently of the armor below them. This allows the lower arm pieces to slide and rotate beneath them, and when the arms are raised, the angled pauldrons move with them.[25]

  • Titanium alloy outer shell/waist:

The MJOLNIR armor's torso plating is connected to the upper-torso plating by free-rotating waist connectors the waist plating contains ammunition/utility pouches. The lower-abdomen plate connects into a track for upper torso bending, the codpiece is connected to the femoral-artery armor.[25]

  • Titanium alloy outer shell/legs:

The MJOLNIR PAA's leg armor consists of two major plating sections, with a third piece protecting the knees. The earlier version of the armor consisted of the thigh armor which is actually two sections held together by two locking collars, the knee pads are secured on the sides. The lower leg contains reinforced piezoelectric bladders which secure ankle and lower legs to prevent impact injury from high-elevation jumps. The boots consist of 15mm-thick soles, which are secured by a foot covering hinge locking bolt.[25]

  • Magnetic weapon holder strips:

Available on updated outer armor components of the Mark IV the magnetic strips are very small yet powerful magnets placed on the legs, waist, and back of the suit and is used to hold any equipment with a magnetic property. The suit also contains a magnet system on the boots of the MJOLNIR suit that allow its wearer to stay attached to a metal surface in zero-G environments and can be toggled on or off by the wearer. In addition to the magnetic holders, the default Mark IV is also equipped with utility pouches on the waist and a clip for a holster capable of accommodating most UNSC sidearms.[16][25]

  • Biofoam injector port:

The biofoam injector is a port where a direct supply of biofoam or other medicines must be administered from a standard military first aid kit when the wearer is injured, as the suit does not hold or generate its own supply inside the suit.

  • Fission reactor:

Integrated in the limited production model of the MJOLNIR PAA the nuclear fission reactor was the MJOLNIR armors source of power, the reactor was built into the suit and allowed for unlimited power. However, because of the delicacy and radioactive nature of the fission reactor its use was limited until it was replaced with a micro-fusion plant in the final production model in 2535.[23][25]

  • Microfusion reactor:

Integrated in the final production model in 2535, the microfusion cell is the most vital component to the MJOLNIR system as it provides power to all components of the MJOLNIR armor. The reactor is built into the suit and allows for nearly unlimited power. The fusion reactor in all versions of the MJOLNIR armor is half the size of a normal battery pack that conventional marines carry around.[51]

The power supply control unit is integrated into the miniature fusion reactor located on the back of the MJOLNIR suit. It provides power distribution to the suit's functions and can be overloaded when too much power is allocated to one function or all functions for long periods of time.

This system functions as a self-destruct mechanism in order to prevent a dead Spartan's armor from being compromised by hostiles. It is activated by a series of digits that only the Spartans know. When engaged, it produces a reactor overload that burns everything within a ten-meter radius, then produces a large blast.[52]

  • Low-impulse propulsion jets:

Located at the back of the suit beneath the fusion reactor, this component provides the ability to propel the MJOLNIR user over short distances and maneuver in zero-gravity environment.[21][53][54][Note 8]

Performance and durability[edit]

"As I suspected, nothing but a man."
— Atriox crushing Douglas-042's Mark IV helmet.[55]
Mark IV MJOLNIR armor taking a hit from a Mgalekgolo's shield.

The Mark IV armor was the most advanced piece of military equipment humanity had created at the time of its distribution. This iteration of MJOLNIR is extremely resistant to gunfire, with most bullets simply bouncing off of the armor. Its gauntlets are also capable of shattering concrete without being damaged.[56] The armor is able to take the blunt force of a two-ton Mgalekgolo's shield strike while simultaneously keeping the Spartan alive in the process.[22][57] The helmet of Mark IV is extremely durable as well, being capable of withstanding the force of a gravity hammer swing by a Brute and sustaining the Spartan's life for a short period of time thereafter.[58] The armor itself, albeit able to withstand such heavy blows, is not designed to continuously withstand high pressure or power. Douglas' left shoulder was broken after Atriox's armored hand was able to break through his armor.

During the Skirmish over Netherop, the Spartans of Green Team, Gold Team, and Blue Team launched themselves from the Starry Night during the vessel's slingshot manoeuvre. Although they eventually yielded against an abrupt roll in their trajectory, the Spartans clutching one another in a swaying column behind their respective team leaders proved strong enough to hold fast in the moment of their linear course; despite having thirty Gs of force being applied against them.[59]

On-board their targeted Covenant vessel, John displayed a level of strength sufficient to pry open one of the ship's interior iris hatch-panels with his bare hands.[60] A month afterwards, in a Covenant space elevator near the planet Naraka, John used his armor's strength enhancements to launch a Covenant pickup vehicle onto the far side of a large conveyor belt - providing cover for an M41-equipped ODST to barricade himself behind.[61] Later, in the upper-terminus leading to a transit tube, John encountered an emergency iris hatch - this time, denting the thick panels with a frustrated bang of his fist.[62]

Though if the armor takes damage it is no longer vacuum-sealed, this can be rectified using armor patches which seal the holes and make the armor vacuum-sealed again. Mark IV MJOLNIR armor is compatible with the patches used by ODSTs on their armor, making it easier to get extras in a combat situation. This was used twice by Blue Team during the Attack on Naraka to seal their armor when going into vacuum after the armor had sustained such damage that it was no longer vacuum-sealed. The lack of armor patching during the Battle of Chi Ceti had forced Samuel-034 to remain behind on the Unrelenting to die, causing the Spartans to start carrying armor patches in case such a situation ever arose again.[63]

In-game information[edit]

Halo 5: Guardians[edit]

The Mark IV helmet and body armor are unlockable as armor permutations through the Requisition system. It only has one alternate skin, Arcadia.

Armor Description Unlock requirements
H5G-Helmet-MarkIV.png
Mark IV GEN1 (helmet)
A battered Mark IV helmet once worn by the Master Chief is the last thing that SPARTAN-IV candidates see before beginning their grueling evaluation and preliminary augmentation cycle. Legendary/Mythic REQ card
H5G REQ Helmets Mark IV GEN1 Arcadia Legendary
Mark IV GEN1 Arcadia (helmet skin)
H5G-Armor-MarkIV.png
Mark IV GEN1 (body)
As the basis for the GEN1 Mjolnir standard, many components of the original Mark IV can be used with GEN2 techsuits and VISRs after firmware updates. This hybrid GEN2/MARK IV [GEN1] suit is still used by select Spartan-II's. Legendary/Mythic REQ card
REQ Card - Armor Mark IV GEN1 Arcadia.png
Mark IV GEN1 Arcadia (body skin)

Halo Infinite[edit]

The Mark IV core was unlocked by default in CU29.

Armor Manufacturer Lore Rarity Unlock Requirements
HINF MarkIV Core Icon.png
Mark IV armor core
Materials Group Stocks of Mark IV armor recovered from the Damascus archives have now been rebuilt under the direction of Dr. Halsey. These refits are fully compatible with official GEN2 and GEN3 standards but Halsey has her own ideas about the next step for Mjolnir. Epic

Unlocked by default during CU29

Common, Materials Group, The Halsey-refit Mark IV helmets are masterpieces of military engineering. Each is a refurbished Covenant War-era relic, stripped down and packed with the latest Mjolnir technology.
Mark IV helmet
Materials Group The Halsey-refit Mark IV helmets are masterpieces of military engineering. Each is a refurbished Covenant War-era relic, stripped down and packed with the latest Mjolnir technology. Common
Common, UNSC, Built for war.Common, UNSC, Built for war.
IMA/Garita
UNSC Built for war. Common
Common, Materials Group, Existing stocks of Mark IV armor have been recovered by the UNSC and rebuilt under the direction of Dr. Halsey. These refits are not fully compatible with official GEN2 and GEN3 standards as Halsey has her own ideas about the next step for Mjolnir.
Mark IV gloves
Materials Group Existing stocks of Mark IV armor have been recovered by the UNSC and rebuilt under the direction of Dr. Halsey. These refits are not fully compatible with official GEN2 and GEN3 standards as Halsey has her own ideas about the next step for Mjolnir. Common
Materials Group, Common, Supplemental armor plating.
UA/Sopron
Materials Group Supplemental armor plating Common
UNSC, Legendary, Omega Team was present at the last stand of many once-great colonies. Through storms of glass and blazing atomic fire they bought time and saved what they could.
IMA/Garita Omega
UNSC Omega Team was present at the last stand of many once-great colonies. Through storms of glass and blazing atomic fire they bought time and saved what they could. Legendary Purchase "Valiant" Bundle from the Shop for 1,800 cR
UNSC, Legendary, Omega Team enforced the UNSC's draconian last-stand protocols in the darkest days of the Covenant War. Nothing of strategic value could fall into the hands of the Covenant, and the soft sound of metal leaving a sheath meant death followed.
IMA/Garita Omega Sykes
UNSC Omega Team enforced the UNSC's draconian last-stand protocols in the darkest days of the Covenant War. Nothing of strategic value could fall into the hands of the Covenant, and the soft sound of metal leaving a sheath meant death followed. Legendary Purchase "Ardent" Bundle from the Shop for 1,800 cR
Legendary, UNSC, A sharp blade never runs out of ammo, doesn't need to recharge, and can't be disabled by EMP. It can be gripped even when mortally wounded and the Mjolnir's power has failed. It can never betray you or be turned by the Flood. And yet, some in the UNSC are surprised by the rapid adoption and popularity of knife-fighting skills among Spartans.
Tac/Garita Omega
UNSC A sharp blade never runs out of ammo, doesn't need to recharge, and can't be disabled by EMP. It can be gripped even when mortally wounded and the Mjolnir's power has failed. It can never betray you or be turned by the Flood. And yet, some in the UNSC are surprised by the rapid adoption and popularity of knife-fighting skills among Spartans. Legendary Purchase "Paladin" Bundle from the Shop for 1,800 cR

Trivia[edit]

  • The sketches of the limited-production Mark IV in Doctor Halsey's journal are almost identical to an early concept for the MJOLNIR armor, apart from the helmet.
  • Kelly-087's and Fred-104's Mark IV suits in Halo 4: Forward Unto Dawn are kitbashed from the Air Assault and Mark V[B] suits used in the live-action "Deliver Hope" trailer for Halo: Reach. Fred's armor was later canonized as the Mark IV(b), though Kelly's remains unidentified.[64]
  • During the development of Halo 5: Guardians, the Mark IV armor was codenamed "A088" when it was conceived.[65]

Gallery[edit]

Illustrations[edit]

Halo Wars[edit]

Development images
Screenshots and renders

Halo Legends[edit]

Halo 4[edit]

Halo 5: Guardians[edit]

Halo Wars 2[edit]

Halo Infinite[edit]

List of appearances[edit]

Notes[edit]

  1. ^ Halo: The Fall of Reach states that the Mark V was issued on August 29, 2552. However, the January 29, 2010 Bungie Weekly Update and Dr. Halsey's personal journal retcon this, stating that the Mark V was issued on November 24, 2551. In this context, the test performed by John-117 was intended to gauge the pairing of the Mark V suit with a piggy-backed AI rather than to observe the suit's performance per se, as presented in the novel. Halo Waypoint's MJOLNIR Project 2 video, released in 2011, erroneously presents the date given in the novel as valid.
  2. ^ Although the in-universe filename of this diagram, MkIV-schem_092524-B109.tif, identifies the armor as "MkIV", it is dated to more than decade before the Mark system was adopted.
  3. ^ Many depictions of the Mark IV system currently lack official designations; such designs are presented here with physical descriptions.
  4. ^ The novel Halo: The Fall of Reach describes the Spartan-IIs as wearing identical armor during the Battle of Chi Ceti IV; the comics Halo: Fall of Reach - Covenant and Halo: Collateral Damage follow suit. However, Halo: The Fall of Reach - The Animated Series depicts the Spartans in distinct variants for the sake of the visual medium.
  5. ^ The color of Jai-006's helmet visor during the Battle of the Rubble has been inconsistently depicted. Throughout Halo: The Cole Protocol, Jai's visor is described as being gold. However, in Halo 2: Anniversary's terminals, his visor is depicted as silver.
  6. ^ 343 Industries writer Jeff Easterling confirmed that the armors' appearance in Halo Wars 2 differs between Blur Studios' cinematic models (the original design) and Creative Assembly's in-game models (the hybrid design) is resource management and communication between the studios.
  7. ^ No source has stated that the Mark IV was equipped with a lock-down system. However, this article assumes that the Mark IV did possess such a system, due in part to Jorge-052 being able to lock his upgraded Mark IV/G armor in the level Tip of the Spear in Halo: Reach.
  8. ^ The Halo 4 Prologue cinematic and Halo: The Fall of Reach - The Animated Series depict the Mark IV with built-in thrusters. In the novels, however, the Mark IV is described as requiring a separate thruster pack attachment for maneuvering in a vacuum. Halo Waypoint notes that integrated thruster packs were added in a later phase of MJOLNIR GEN2 upgrades (presumably in 2558), despite the GEN2 models in Halo 4 appearing to possess the hardware already. It is unlikely that the Mark IV would feature maneuvering jets only for the technology to be abandoned until GEN2's release. The depictions of the Mark IV with built-in thrusters may stem from the admittedly non-canonical use of John-117's unique Mark VI armor in the Prologue cinematic, while the use of built-in thrusters in Halo: The Fall of Reach - The Animated Series may be due to simplification for the sake of the visual medium. As Halo Mythos describes the thrusters as "low-impulse propulsion jets", it is likely that they are canonically inadequate for full EVA, which would require a dedicated thruster pack.
  9. ^ Josh Holmes has confirmed that the use of John-117's unique Mark VI model to represent the Mark IV in Halo 4's Prologue cinematic is not canon. The geometry was recycled because the production team did not have time to create a unique Mark IV model that would have only seconds of screen time. Halo 4: The Essential Visual Guide notes that John's upgraded Mark VI suit resembles an earlier Mark IV line (likely as a tongue-in-cheek nod to the cutscene), though this does not mean that the two designs are canonically identical. The cutscene uses the same model to represent the Mark V suit John canonically wore when he met Cortana, further invalidating its canonicity.

Sources[edit]

  1. ^ a b c d Halo: The Fall of Reach, page 115 page 138 (2010 edition)
  2. ^ a b Halo: The Fall of Reach, page 113 page 136 (2010 edition)
  3. ^ Bungie.net: Bungie Weekly Update: 01.29.10
  4. ^ a b Halo 5: Guardians
  5. ^ Halo Infinite, Armor Hall: Mark IV - Helmet Description "The Halsey-refit Mark IV helmets are masterpieces of military engineering. Each is a refurbished Covenant War-era relic, stripped down and packed with the latest Mjolnir technology."
  6. ^ Halo Infinite, Armor Hall: Mark IV - Armor Core Description "Stocks of Mark IV armor recovered from the Damascus archives have now been rebuilt under the direction of Dr. Halsey. These refits are fully compatible with official GEN2 and GEN3 standards but Halsey has her own ideas about the next step for Mjolnir."
  7. ^ a b c d Sybex Halo: Combat Evolved (PC port) Strategy Guide, page 5
  8. ^ Dr. Halsey's personal journal July 30th, 2511 entry
  9. ^ a b c d e f g h Master Chief's Armor: An Overview
  10. ^ a b Halo: The Fall of Reach page 120 page 143 (2010 edition)
  11. ^ a b c Halo: The Fall of Reach page 114-115 page 137 (2010 edition)
  12. ^ Halo: The Fall of Reach page 70 page 89 (2010 edition)
  13. ^ Halo: The Fall of Reach page 2 page 16 (2010 edition)
  14. ^ Halo Waypoint: The MJOLNIR Project Part 1
  15. ^ a b c Halo Encyclopedia (2009 edition) pages 88-89
  16. ^ a b Dr. Halsey's Personal Journal January 7th, 2535 entry
  17. ^ The Halo Bulletin: 7.18.12
  18. ^ a b Halo Waypoint: The MJOLNIR Project Part 2
  19. ^ a b Dr. Halsey's Personal Journal June 30, 2525 entry
  20. ^ a b Halo: Collateral Damage, Hardcover bonus - John-117
  21. ^ a b Halo: The Fall of Reach - The Animated Series
  22. ^ a b c d Halo 4: Forward Unto Dawn
  23. ^ a b Halo: Ghosts of Onyx page 45
  24. ^ a b Halo Legends, Halo: The Story So Far
  25. ^ a b c d e f g h i j Dr. Halsey's personal journal January 7, 2535 entry
  26. ^ Halo: The Essential Visual Guide, page 119: "Energy shielding was a key feature of Mark V, although other Spartan squads had field-tested prototypes of this technology as early as 2531."
  27. ^ YouTube: Halo Canon Exclusive Interview
  28. ^ Halo: The Essential Visual Guide page 4
  29. ^ a b c Halo: Reach, The Armory
  30. ^ Halo: The Essential Visual Guide - Page 85
  31. ^ Halo: The Essential Visual Guide, page 33
  32. ^ Halo: The Essential Visual Guide, Pilot page
  33. ^ Halo Waypoint: GrimBrotherOne: Nothing has changed about the CQB variant of the Mjolnir armor system. Samuel is utilizing a developmental helmet permutation that shares visual cues with the eventual CQB. This kind of cross-germination of physical shape and design between all Mjolnir platforms was pervasive in the early development of Mjolnir at the Materials Group facilities.
  34. ^ Halo 2: Anniversary, Terminal 1
  35. ^ Halo: The Cole Protocol cover art
  36. ^ Halo Waypoint: Community Update - Golden Clouds
  37. ^ Halo Waypoint - Canon Fodder: The Art of War(s)
  38. ^ Halo: The Television Series: London Premiere descriptions "Kai-125 - Berta helmet: Kai's Mk. IV/B helmet was developed alongside a Spartan-specific variation of the HRUNTING/YGGDRASIL Mark I Armor Defense System. Kai has modified her suit with sniper targeting interlinks and "smart shot" interfaces suited for her long-range fighting style."
  39. ^ Halo: The Television Series: London Premiere descriptions "Riz-028 - Samuel helmet: The Mk. IV/S helmet features novel sensor and BIOS improvements co-developed by Riz-028 after her close analysis of Covenant hunter-seekers during the Arcadian campaign. Her work continues to inform the secretive MJOLNIR reconnaissance and surveillance program and its future helmet designs."
  40. ^ Halo: First Strike page 13 page 20 (2010 edition)
  41. ^ Halo: Ghosts of Onyx page 36
  42. ^ a b Dr. Halsey's Personal Journal July 11th, 2511 entry
  43. ^ a b c Dr. Halsey's Personal Journal September 1st, 2525 entry
  44. ^ a b Halo Encyclopedia: The Definitive Guide to the Halo Universe page 90
  45. ^ Halo 3, level Arrival
  46. ^ Halo Encyclopedia: The Definitive Guide to the Halo Universe, page 91
  47. ^ Halo: Reach, campaign level Tip of the Spear
  48. ^ Youtube: Halo Reach Legendary Edition developer commentary, part 4
  49. ^ 2535 Mark VI schematic
  50. ^ Halo: Reach Armory - hosted by Ready Up Live
  51. ^ Halo: The Fall of Reach page 114 page 137 (2010 edition)
  52. ^ Halo: First Strike, page 315
  53. ^ Halo 4, Prologue
  54. ^ Halo Mythos, page 61
  55. ^ Halo Wars 2, campaign level The Signal
  56. ^ Halo: The Fall of Reach page 134 (Definitive edition)
  57. ^ Halo: Ghosts of Onyx page 360
  58. ^ Halo Legends, "The Babysitter"
  59. ^ Halo: Silent Storm, page 13
  60. ^ Halo: Silent Storm, page 43
  61. ^ Halo: Silent Storm, page 345
  62. ^ Halo: Silent Storm, page 362
  63. ^ Halo: Silent Storm
  64. ^ Halo Waypoint - Frederic-104
  65. ^ The link reveals the armor was named A088 during production