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{{Status|Canon}}
[[File:Deployable lookout tower Reach.png|thumb|250px|A Covenant watchtower employed during the [[Fall of Reach]].]]
{{Cleanup}}
The [[Covenant]] and [[Covenant remnants|its remnants]] deployed a type of '''watchtower''',{{Ref/Site|URL=http://halo.bungie.net/News/content.aspx?cid=5587|Site=Bungie.net|Page=Relic Revealed: 6/28/2005|Quote=There are two sniper rifles available on Relic – a Human Sniper spawns right near the wreckage by the offense starting point and a Beam Rifle spawns at the base of the Covenant watchtower.|D=13|M=10|Y=2014}}{{Ref/Level|H3ODST|Coastal Highway|Quote=Flank the watchtower, Trooper! Take it out!|Quotee=Edward Buck}} sometimes known as a '''lookout tower''',{{Ref/Novel|Id=sor|SOR|Chapter=12|Quote=A third round of explosions sounded out on the barrens as John reached the lookout tower at the south end of the shield barrier. Conscious that he had nothing with which to defend himself but a submachine gun and a pistol, he stepped into the tower base and allowed the gravity lift to carry him up to the watch platform.}} on the battlefield.{{Ref/Book|Id=enc22|Enc22|Page=223}}
{{References}}
{{Species infobox
|variant=Flood
|name=Pod infector
|image=[[File:H2A - Flood infection form model.jpg|300px]]
|latin=
|classification=[[Infection form]]
|species=[[Flood]]
|subspecies=
|diet=
|height={{Convert|89.6|cm|ftin|sp=us}}-{{Convert|131.4|cm|ftin|sp=us}}{{Ref/Game|Id=Library|HCEA|Library (feature)|Library|Detail=Infection Form}}
|weight={{Convert|16.8|kg|lb}}-{{Convert|28.6|kg|lb}}{{Ref/Reuse|Library}}
|distinctions=Small, balloon-like creatures with many tentacles for probing.
|lifespan=
|homeworld=
|techlevel=
|notable-person=
|othernames=
|languages=
}}
The '''pod infector''',{{Ref/Game|Id=PLPI|HW2|Phoenix Logs|Detail=Pod Infectors}} also more commonly known as the '''Flood infection form''',{{Ref/Book|Id=enc22|Enc22|Page=406}} is a stage of the virulent [[Flood]] xenoform. It is the most common Flood form and is usually the first forms to be released. It is the primary form for spreading the Flood infection due to its effectiveness compared to mere [[Flood spores]] when deployed in large numbers.{{Ref/Reuse|PLPI}}


== Overview ==
==Overview==
=== Design details ===
===Physical characteristics===
The Covenant watchtower is comprised of a circular platform and a gravity base. As a rather ordinary example of technology that enables platform suspension within the Covenant, the gravity base features an anti-gravity generator in its center, from which the circular platform is suspended in the air at a stable and static position. The anti-gravity generator also serves as a [[gravity lift]] for transporting supplies and troops freely and swiftly through a gap in the center of the platform.{{Ref/Reuse|enc22}}
The most commonly encountered infection forms have soft, pod-like bodies with numerous tentacle-like appendages and a frond-like array which acts as the creature's sensory system. Their tendrils are multi-purpose locomotion systems and insidious methods of control.{{Ref/Game|Id=PLIF|HW2|Phoenix Logs|Detail=Infection Forms}}


The protected platforms display a variety of designs. One platform design has three protective pillars with large gaps between them for snipers to have a clear line of sight or for [[Unggoy Heavy]] to man their {{Pattern|Pek|plasma cannon}}s.{{Ref/Game|Id=h3|H3|gameplay}}{{Ref/Game|Id=h3odst|H3ODST|gameplay}}{{Ref/Game|Id=hr|HR|gameplay}} [[Jul 'Mdama's Covenant]] employed a variant that has taller pillars.{{Ref/Game|Id=h4|H4|gameplay}} Some platforms have three thinner, longer pillars that support a rooftop-like cover instead of oval pillars.{{Ref/Game|Id=h2|H2|gameplay}} Watchtowers could be connected to an adjacent [[energy wall]], which will activate when the tower is occupied.{{Ref/Game|Id=hw|HW|gameplay}}
Each tendril ends in nano-scale barbs which can latch onto the target's body and cut through armor or environmental suits. Once the target is compromised, infection forms inject Flood cells to hijack the victim's nervous system. Even if the infection form is quickly removed, Flood cells in the wounds will slowly consume the victim and turn them into quivering, spore-packed blisters. Against unprepared victims the infection form bores into the body, quickly mutating it into a combat form.{{Ref/Reuse|PLIF}}


The watchtowers are easily installed and activated.{{Ref/Reuse|enc22}} However, once deployed, the base cannot be moved again. In contrast, the platform is not as steady as the base; weapon fire can destroy the platform or knock it out of suspension.{{Ref/Reuse|h3}}{{Ref/Reuse|h3odst}}{{Ref/Reuse|hr}}{{Ref/Reuse|h4}}{{Ref/Reuse|h2}}
Though barely intelligent on their own, once an infection form infiltrates a sentient creature they turn the victim's cognitive power to the furtherance of Flood goals. Each is an insidious puppeteer, able to sift through memories of any sentient creature to learn of military countermeasures, security access codes, and the location of population centers. This information is then shared with other Flood through their connection with the key minds.{{Ref/Reuse|PLIF}}
<gallery class=center>
 
File:H2-DeployableLookoutTower.png|A variant of the watchtower with a sheltered platform.
 
File:H3-DeployableLookoutTower.png|A variant of the watchtower with an exposed platform.
===Function===
File:MCC-H4 DST.png|A variant of the watchtower with an exposed platform employed by [[Jul 'Mdama's Covenant]].
Once the parasite can establish a hive it can begin to produce massive numbers of infection forms that spread out in search of new sentients to infect, and non-sapient animals on which to feed. Both ground and airborne infection forms are used as living weapons, hurling themselves at the enemy to overwhelm defenses and assimilate the unprepared.
</gallery>
 
Pods hurl themselves at infantry units, bursting and dealing damage.
It uses its tentacles to attack and infect organisms.{{Ref/Book|Id=enc11|Enc22|Page=180}}
 
Though individually weak and easily killed, pod infectors strike in vast numbers and can move over cliffs.
 
 
Pod infectors are the primary vector for the Flood infection. While small (roughly the size of a [[human]] torso) and weak, they travel in huge swarms and overwhelm foes using sheer numbers. Once within range of a potential host, they leap for the victim's chest area, rasping away at armor, clothing and flesh with their numerous tentacle-like limbs. These appendages penetrate deep into the body, tap into the victim's spinal cord, and unleash an attack on the host's nervous system via direct contact with the spine. Once this is accomplished, the form rewrites the neural pathways of the victim's brain with its tendrils, forcing a resonant frequency match between its neural signals and the host's. At this point, the Pod infector has complete control over the body's motor functions.
 
As the Pod infector hacks into the host's nervous system, it releases encapsulated [[LF.Xx.3273 Flood Super Cell|Flood Super Cells]] into the body. These cells interface with the host's cells, "digest" them and convert their components into new Flood cells. At this point, the Pod infector burrows into the host body, moving aside the internal organs and taking up residence within the chest cavity (or any approximate equivalent). Having achieved total control over the host, the Pod infector reshapes the body into a form more suitable for attacking enemies - a [[Flood combat form|combat form]]. Even if the Pod Infector is quickly removed from the host body, the injection of Flood cells into the host's system is enough to cause rapid transformation into spore-packed [[Flood blister|blisters]].<ref name="Infection Forms">'''Halo Wars 2''', ''[[Phoenix Logs]]'' - Infection Forms</ref>
 
The speed and intensity of this process occurs at the same rate as an energetic chemical reaction, often taking mere seconds to accomplish. The consequences for the host organism are extreme, as their brains are purged of all traces of their original personality and their bodies are reconstituted into Flood biomatter. The organism effectively becomes a pawn of the Flood's collective intelligence, to be used in any way it deems necessary.
 
In exceedingly rare cases, such as if the Pod infector has been damaged or is incredibly old, it will go through this process without killing the host, leaving them at least partially aware of what is going on, but unable to move or act. This was the fate of UNSC Private [[Wallace A. Jenkins]] during the raid on the "[[Flood containment facility|Covenant weapons cache]]" on [[Installation 04]].<ref>'''[[Halo: The Flood]]''', ''page 176''</ref> This aged version of the Pod infector must have been kept in captivity for far too long, thereby reducing its potential of complete transformation of its host into a Flood combat form. Jenkins survived infection, and even remained conscious, with short periods of time where he could exert control over his mutated body.
 
A Pod infector may abandon its host if the corpse has been heavily damaged, and look for a new one. If the Pod infector inside a combat form has been destroyed, but the combat form itself is intact enough to continue serving its purpose, loose Pod infector may burrow inside the body and take the place of the one that mutated it, effectively "re-animating" the combat form.
 
Pod infectors develop from [[Flood tadpole|a form]] vaguely resembling a larva or tadpole but bearing the basic superficial characteristics of a Pod infector. A number of Flood forms in this stage of their life cycle were kept in stasis by the Forerunners in [[Flood research facility|Flood research facilities]], such as the one in the [[Threshold gas mine]].<ref name="onefinaleffort">[http://halo.bungie.net/news/content.aspx?type=topnews&cid=25650 '''Bungie.net''': ''One Final Effort (4/16/2010)'']</ref>
 
While an effective vector of infection against armored and shielded organisms as well as those equipped with atmospheric filters, a Pod infector is not necessary for the Flood to infect a host; merely ingesting [[Flood spore]]s or inserting them via a wound is sufficient to initiate Flood conversion. Such infection may occur several seconds or perhaps minutes later, yet the transformation will occur almost instantaneously once it has begun.<ref>'''Halo Wars''', campaign level ''[[Anders' Signal]]''</ref><ref>'''Halo: Evolutions''' — ''"[[The Mona Lisa]]"''</ref>
 
=== Effects on host forms===
[[File:TFS-Likeafrog.png|thumb|A carrier form spawning Pod infectors aboard the {{UNSCShip|Spirit of Fire}} in 2537.|250px]]
While any large life form with some level of awareness and/or sentience can be infected by a Pod infector, not all of them are suitable to serve the function of Combat Forms, the Flood's signature and preferred mobile form utilized during the Feral Stage. While these hosts are transformed in a similar fashion to the traditional combat forms, these forms are not often employed in front line combat for several reasons.
 
The first of these would be the fact that such life forms, despite their sophisticated nervous systems and adequate levels of sentience, simply lack the necessary biomass, calcium reserves, and physical strength to make first-choice combat units. More specifically, when a host life form is transformed, the activities of the Pod infector require not only the aforementioned levels of biomass, calcium content, and strength (Though humans become combat forms more often than the much larger and stronger unggoy for whatever reason.) but that the host has the physical endurance and stamina to withstand the process. Species such as humans, Forerunners, Sangheili, and the Jiralhanae are almost always turned into combat forms because their biology and physical properties enable them to withstand the Pod infectors' abilities, which are violent and resource-intensive.


=== Usage ===
In contrast, other life forms, such as the [[Kig-Yar]], and perhaps the [[Yanme'e]], lack these important qualities, or in the case of the [[Unggoy]] have other limitations due to their physique despite their perfectly adequate levels of sentience and neural complexity. Because of these factors, these hosts are primarily used for other but equally important purposes. These involve multiple mission profiles that are essential to the development of Flood outgrowth: establishment of mobile incubators, biomass and calcium reserves, hive structures, and the components of a [[Proto-Gravemind|coordinating and controlling intelligence]].
[[File:H3ODST JackalInTower.png|thumb|250px|A Kig-Yar Sniper posted on a watchtower during the [[Battle of Mombasa]].]]
The watchtowers are used to fortify specific areas. They are installed to establish a perimeter before the deployment of a [[Covenant citadel|forward operations citadel]] or other advanced occupation site.{{Ref/Reuse|enc22}} The tower is able to garrison a Covenant [[file (unit)|file]], though they are typically occupied by marksmen, such as [[Kig-Yar Sniper]]s or [[Jiralhanae]] with [[Vostu-pattern carbine|carbines]], or Heavy Unggoy manning plasma cannons.{{Ref/Game|H3|gameplay}}


== In-game information==
When utilized for the creation of the hive and the central intelligence, the weaker hosts gather together and merge into single mass or a collection of masses spread around whatever environment the Flood have established themselves in. In this way, the weaker host forms serve as 'building blocks' for the creation of a Flood Hive, which if all goes according to its logical conclusion, will spawn a fully-developed collective and the next stage of the Flood's development: the [[Coordinated Stage]] and its crowning achievement, a [[Gravemind]]. Surrounding life forms such as significantly smaller animals as well as the full range of plants, microbes, lichens, and fungi, are seized by the growing Flood collective and digested as raw material to create more generic Flood biomass.
In ''[[Halo 2]]'', the watchtowers appear in numerous [[campaign]] maps as well as in the [[multiplayer]] map, [[Relic]]. The platforms are indestructible, though they could be pushed off the base; the base would remain active and hold players in the air.


In ''[[Halo 3]]'' and ''[[Halo 3: ODST]]'', the watchtowers appear in some campaign levels, with some equipped with plasma cannons. The platforms are destructible, as they would break into debris after sustaining heavy damage.
The next vital use for lesser hosts is to serve as the second signature form of the [[Feral Stage]], the mobile Pod infector incubator known as a Carrier Form. While these are usually formed from weakened, damaged, and/or aged Combat Forms, weaker host forms are just as frequently employed for this purpose. The first step in the creation of a Carrier Form by this method involves a single appropriate host to function as a nucleus, which is then followed by one or more other weaker forms attaching themselves to the leading unit. The congregated hosts then fuse, with the external host forms being rapidly digested by the central form, with the result being that the other hosts have been reduced to extra, generic biomass, contributing to the structure of the now significantly distorted, bloated incubator.<ref>''''[[Halo: The Flood]]'''', ''page 291''</ref>


In ''[[Halo Wars]]'', the watchtower is known as '''Sniper Tower'''. They are indestructible garrison buildings. In campaign, they are frequently employed by the Covenant, but once the Covenant unit occupying the tower is killed, UNSC soldiers can garrison in it, increasing their combat capabilities. In [[Skirmish]], they are left neutral for either team's taking, providing a useful defense, if needed. Certain maps, such as  ''[[Tundra]]'' or ''[[Fort Deen]]'', include watchtowers that are connected to energy walls. When garrisoned, the energy wall activates and prevents ground units from moving through. These walls can be bypassed by air units, [[Jiralhanae Jumper]]s, and, if the surrounding terrain allows, {{Pattern|Deutoros|Scarab}}s.{{Ref/Reuse|hw}}
While this complex methodology is largely standard procedure for the Flood, there are occasionally exceptions to these rules due to the Flood's adaptive nature. In at least [[Battle of the Trove|one notable campaign]]<ref>'''''Halo Wars'''''</ref> early in the Human-Covenant War, this mode of operation was contradicted by the Flood. The outbreak present on this installation employed Kig-Yar and Unggoy quite frequently as front line combat units despite their inadequate status, and was also distinct from other outbreaks with the fact that it was predominantly formed out of life forms lacking sentience such as plants, fungi, etc., or those possessing lower levels of sentience, such as the wide range of animals living there.


In ''[[Halo: Reach]]'', the watchtowers are largely similar to those in ''Halo 3'' with minor aesthetic upgrades. However, unlike in ''Halo 3'' and ''Halo 3: ODST'', where its base deactivates when the platform is destroyed, the gravity lift remains active, like it did in ''Halo 2''.
=== Immunities and defenses ===
[[Energy shielding]] destroys Pod infectors on contact, causing them to explode in a small burst of gas and flesh. Conventional body armor is generally ineffective against Pod infectors; they can easily squeeze through gaps in armor plating, and their grasping tentacles can burrow through rubber, fabric or polymer (including MJLONIR MK V undersuits) in order to reach the flesh underneath.  


In ''[[Halo 4]]'', the watchtowers are very similar to their ''Halo: Reach'' counterparts. However, the player must crouch to enter it due to narrower hole of entrance. The base of the tower will always be active and be able to lift vehicles. The base will also explode when heavily damaged, harming those nearby.
[[Staff Sergeant]] [[Avery Junior Johnson|Avery Johnson]] was thought by Dr. [[Catherine Halsey]] to be incompatible with Flood Pod infectors due to the fictitious "[[Boren's Syndrome]]"<ref>'''[[Halo: First Strike]]''', ''page 244''</ref> — in reality a cover for the augmentations he received as part of the [[ORION Project]].<ref>'''Halo Graphic Novel''', ''[[Halo Graphic Novel, Page 122|page 122]]''</ref> However, it is apparent that Johnson's augmentations did not make him truly immune to the Flood conversion process itself, instead granting him the ability to fight off and escape the parasite more effectively than the baseline humans alongside him.<ref>[https://forums.halowaypoint.com/yaf_postsm2969315_Catalog-Interaction.aspx#post2969315 '''Halo Waypoint''': ''Catalog Interaction - Page 14'' (''"No known biological <nowiki>[scaffolding]</nowiki> augmentation impedes efficacy of parasite conversion process.]"'')</ref><ref name="hgn">'''[[Halo Graphic Novel]]''', ''[[Breaking Quarantine]]''</ref><ref>''See [[Avery Johnson#Notes]]''</ref>


In ''[[Halo Infinite]]'', the ''Halo 3'' iteration of the watchtower will be made available in [[Forge]]'s Covenant palette with [[Content Update 29]]. It is comprised of two separate objects: Covenant Watchtower Base and Covenant Watchtower Platform.{{Ref/YouTube|9aV4pIIz2p8|HALO|January Update & HCS 2024 Roadmap <nowiki>|</nowiki> Halo Infinite|T=1397|D=28|M=1|Y=2024}}
The [[Mgalekgolo]]'s lack of a central nervous system and nature as an invertebrate colony consisting of multiple worms likely make them immune to Flood infection.<ref>'''''[[Halo: First Strike]]'''''</ref> The invertebrate nature of the [[Yanme'e]], along with their hard, chitinous exoskeleton, would seem to make them immune as well. However, while their unique physiologies make standard infection difficult, it is likely that the Flood are still capable of consuming and converting Lekgolo and Yanme'e into Flood biomass.


== Production notes ==
==Trivia==
*[[Tag]]s for watchtower (and Shades) exist in ''Halo 3''{{'}}s [[Snowbound]]. The watchtowers can be manipulated in Forge, but have no names, costs, or maximum limits. The watchtower platforms tend to spontaneously disappear, and do not respawn.
{{Linkbox|gameplay=yes}}
*In ''Halo 3'' and ''Halo 3: ODST'', the player can detach a watchtower platform with plasma cannons from the base without destroying it (such as using a Gravity Hammer). If the platform is tilted more than 45 degrees, a message saying "Inoperable turret" will appear when the player is near the turret. However, any Unggoy manning the turret would remain on the turret.
*In ''[[Halo: Combat Evolved]]'', if a Pod infector latches itself onto a Marine or one of the Covenant, instead of mutating the host, it will become irrevocably attached until the host is dead. If at least one Pod infector manages to leap onto an unshielded player in this game, it will deal a noticeable amount of damage (this will increase depending on difficulty and number of Pod infectors attached), fall off, and attempt to strike the player again. This effect on the player also appears in ''Halo 3''.
*An [[energy sword]] will not lose energy by killing Pod infectors in ''Halo 2'' and ''Halo 3'', but this method is highly ineffective as Pod infectors are extremely hard to hit with an Energy Sword.
*Pod infectors do not add points to the player's meta-score when the [[campaign scoring]] is activated in ''Halo 3'' and ''[[Halo: The Master Chief Collection]]''. This is most likely because Pod infectors come in swarms, and could be used to rack up points with almost no effort.
*Unlike in ''Halo: Combat Evolved'' and ''Halo 2'', the Pod infectors in ''Halo 3'' float in water. Thus, they cannot infect corpses that are in water ponds because of this animation.
* In ''Halo Wars'', when Sergeant Forge shoots the Flood Pod infectors that are attacking Professor Anders, they do not pop like all other Pod infectors. Instead, they simply fall lifelessly to the ground.
*In ''Halo 3'', code exists for a deleted "banger" variant of Pod infector, which would explode like a plasma grenade when destroyed.<ref>[https://www.youtube.com/watch?v=R60geSLtnWk '''YouTube:''' ''Halo 3 - Cut Enemy: Flood Infection "Banger"'']</ref>
*In ''Halo: Combat Evolved'', Pod infectors are not affected by fall damage, most likely due to the script or slow speed during freefall.


==Gallery==
==Gallery==
{{Linkbox|gallery=yes|gallerypage=Images of deployable lookout towers}}
<gallery>
<gallery>
File:H2_Outskirts_LookoutTower.jpg|A watchtower on the outskirts of New Mombasa in ''Halo 2''.
File:HCE_InfectionForm_Concept.jpg|Concept art of a Pod Infector from ''Halo: Combat Evolved''.
File:H2 Destroyed tower.jpg|A watchtower platform knock out of suspension in ''Halo 2''.  
File:Flood3.jpg|Flood Pod infector in ''[[Halo: Combat Evolved]]''.
File:HTMCC-H2 SacredIconSpecOpsCamp.png|An inactive watchtower in ''Halo 2''.
File:HCE Flood Infection Form.png|In-game view of a Flood Pod infector in ''Halo: Combat Evolved''.
File:H3_LookoutTower_Above.jpg|Top-down view of a watchtower in ''Halo 3''.
File:HCE Infectionforms.jpg|The Master Chief watches as Pod infectors prepare to consume a dead Elite and a dead Grunt.
File:H3 BruteSniper.png|A Jiralhanae armed with a [[particle beam rifle]] on a watchtower in ''Halo 3''.
File:H2 Flood Infection Form.png|A Pod infector in the [[Threshold gas mine]] in ''[[Halo 2]]''.
File:HW_LookoutTower.png|Two Kig-Yar on a watchtower in ''Halo Wars''.
File:H2_PodInfector_Closeup.jpg|A Pod infector in ''Halo 2''.
File:MCC-H4 DSTboom.png|A watchtower being destroyed in ''[[Halo 4]]''
File:HTMCC Avatar InfectionForm.png|Render of the ''Halo 2'' Pod infector in ''[[Halo: The Master Chief Collection]]''.
File:HTMCC-H2A InactiveWatchtower.png|An inactive watchtower in ''[[Halo 2: Anniversary]]''.
File:InfectionForm Profile.jpg|Pod infectors in ''[[Halo 3]]''.
File:HTMCC-H2A CovenantWatchtower.png|A deployed watchtower in ''Halo 2: Anniversary''.
File:Flood infection form in HaloWars.jpg|A Pod infector in ''[[Halo Wars]]''.
File:H5G_CovenantDeployableTower_Concept.jpg|Concept art for the ''[[Halo 5: Guardians]]'' iteration of the watchtower.
File:Anders Flood.png|Pod infectors assaulting [[Ellen Anders|Professor Anders]].
File:HINF - ForgeCU29Covenant.jpg|A Covenant watchtower in ''[[Halo Infinite]]'' [[Forge]].
File:HW PodInfector Blur Render.jpg|A render of the pod infector asset created for ''Halo Wars''{{'}} cutscenes.
File:Infectionformpet.png|A pet Flood Pod infector which can be purchased as a feature for any Xbox 360 Avatar.
File:Floodsuit.png|An [[Avatar (Xbox 360)|Xbox 360 Avatar]] customized with a Flood Pod infector suit.
File:HTMCC-H4 Terminals LibrarianAtWork.png|The [[Librarian]] investigating a Flood Pod infector in ''[[Halo 4]]''<nowiki>'s</nowiki> [[Terminal (Halo 4)|terminals]].
File:Flood infector Spirit of Fire.jpg|A Flood Pod infector inside the {{UNSCShip|Spirit of Fire}}'s cryo-room in ''[[Halo: Escalation]]''.
File:HSA Flood mode.jpg|Flood Pod infectors in ''[[Halo: Spartan Assault]]''.
File:MercyFlood.jpg|A Pod infector attacks the Prophet of Mercy, eventually killing him.
File:TFS-Krunch.png|Jerome-092 destroying a Pod infector in a single punch in ''[[Something has Happened]]''.
File:HW2 - Flood infection form models.jpg|Models of the Pod infector for ''[[Halo Wars 2]]''.
File:HW2 - Flood infection form.jpg|More detailed models.
File:HW2_InfectorTidalWave_Concept.jpg|Banished forces succumbing to a tidal wave of Pod infectors.
File:HW2-SpikedInfectionform.jpg|A Pod infector killed by a Banished Jiralhanae's Spiker in ''Halo Wars 2''.
File:HW2-Squish.gif|Atriox crushes a Pod infector.
File:HOD-InfectionForm.jpg|An infection form at [[Outpost Discovery]].
File:HINF Unknown Cylix Scan.png|A Pod infector trapped in a [[Cylix]] on [[Installation 07]] in ''[[Halo Infinite]]''.
File:HINF - Charm icon - Infection charm.png|A Pod infector weapon charm in ''Halo Infinite''.
</gallery>
</gallery>


==List of appearances==
==List of appearances==
*''[[Halo 2]]'' {{1st}}
{{Col-begin}}
*''[[Halo: Uprising]]''
{{col-2}}
*''[[Halo: Combat Evolved]]'' {{1st}}
*''[[Halo: The Flood]]''
*''[[Halo: First Strike]]'' {{Mo}}
*''[[Halo 2]]''
**''[[Conversations from the Universe]]'' {{Mo}}
*''[[Halo Graphic Novel]]''
**''[[Breaking Quarantine]]''
*''[[Halo 3]]''
*''[[Halo 3]]''
*''[[Halo Wars]]''
*''[[Halo Wars]]''
*''[[Halo 3: ODST]]''
*''[[Halo 3: ODST]]'' {{MCCo}}
*''[[Halo: Reach]]''
*''[[Halo Legends]]''
**''[[Origins]]''
{{col-2}}
*''[[Halo: Evolutions]]''
**''[[The Mona Lisa]]''
*''[[Halo: Combat Evolved Anniversary]]''
*''[[Halo 4]]''
*''[[Halo 4]]''
**''[[Spartan Ops]]''
**''[[Terminal (Halo 4)|Terminals]]''
*''[[Halo: Spartan Assault]]'' {{C|Simulation-only}}
*''[[Halo: Escalation]]''
*''[[Halo: Escalation]]''
*''[[Halo 2: Anniversary]]''
*''[[Halo 2: Anniversary]]''
*''[[Halo: Lone Wolf]]''
*''[[Halo Mythos: A Guide to the Story of Halo]]''
*''[[Halo: Shadows of Reach]]''
*''[[Halo: Tales from Slipspace]]''
**''[[Something Has Happened]]''
*''[[Halo Wars 2]]''
*''[[Halo: Fireteam Raven]]''
*''[[Halo: Outpost Discovery]]''
*''[[Halo Infinite]]''
{{col-end}}


==Sources==
==Sources==
{{Ref/Sources}}
{{Ref/Sources}}


{{HW buildings}}
{{Flood}}
[[Category:Fortifications]]
[[Category:Flood forms]]
[[Category:Covenant buildings]]

Revision as of 05:28, May 17, 2024

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Pod infector
H2A - Flood infection form model.jpg
Biological overview

Classification:

Infection form

Species:

Flood

Physical information

Avg. height:

89.6 centimeters (2 ft 11.3 in)-131.4 centimeters (4 ft 3.7 in)[1]

Avg. weight:

16.8 kilograms (37 lb)-28.6 kilograms (63 lb)[1]

Distinctions:

Small, balloon-like creatures with many tentacles for probing.

 

The pod infector,[2] also more commonly known as the Flood infection form,[3] is a stage of the virulent Flood xenoform. It is the most common Flood form and is usually the first forms to be released. It is the primary form for spreading the Flood infection due to its effectiveness compared to mere Flood spores when deployed in large numbers.[2]

Overview

Physical characteristics

The most commonly encountered infection forms have soft, pod-like bodies with numerous tentacle-like appendages and a frond-like array which acts as the creature's sensory system. Their tendrils are multi-purpose locomotion systems and insidious methods of control.[4]

Each tendril ends in nano-scale barbs which can latch onto the target's body and cut through armor or environmental suits. Once the target is compromised, infection forms inject Flood cells to hijack the victim's nervous system. Even if the infection form is quickly removed, Flood cells in the wounds will slowly consume the victim and turn them into quivering, spore-packed blisters. Against unprepared victims the infection form bores into the body, quickly mutating it into a combat form.[4]

Though barely intelligent on their own, once an infection form infiltrates a sentient creature they turn the victim's cognitive power to the furtherance of Flood goals. Each is an insidious puppeteer, able to sift through memories of any sentient creature to learn of military countermeasures, security access codes, and the location of population centers. This information is then shared with other Flood through their connection with the key minds.[4]


Function

Once the parasite can establish a hive it can begin to produce massive numbers of infection forms that spread out in search of new sentients to infect, and non-sapient animals on which to feed. Both ground and airborne infection forms are used as living weapons, hurling themselves at the enemy to overwhelm defenses and assimilate the unprepared.

Pods hurl themselves at infantry units, bursting and dealing damage. It uses its tentacles to attack and infect organisms.[5]

Though individually weak and easily killed, pod infectors strike in vast numbers and can move over cliffs.


Pod infectors are the primary vector for the Flood infection. While small (roughly the size of a human torso) and weak, they travel in huge swarms and overwhelm foes using sheer numbers. Once within range of a potential host, they leap for the victim's chest area, rasping away at armor, clothing and flesh with their numerous tentacle-like limbs. These appendages penetrate deep into the body, tap into the victim's spinal cord, and unleash an attack on the host's nervous system via direct contact with the spine. Once this is accomplished, the form rewrites the neural pathways of the victim's brain with its tendrils, forcing a resonant frequency match between its neural signals and the host's. At this point, the Pod infector has complete control over the body's motor functions.

As the Pod infector hacks into the host's nervous system, it releases encapsulated Flood Super Cells into the body. These cells interface with the host's cells, "digest" them and convert their components into new Flood cells. At this point, the Pod infector burrows into the host body, moving aside the internal organs and taking up residence within the chest cavity (or any approximate equivalent). Having achieved total control over the host, the Pod infector reshapes the body into a form more suitable for attacking enemies - a combat form. Even if the Pod Infector is quickly removed from the host body, the injection of Flood cells into the host's system is enough to cause rapid transformation into spore-packed blisters.[6]

The speed and intensity of this process occurs at the same rate as an energetic chemical reaction, often taking mere seconds to accomplish. The consequences for the host organism are extreme, as their brains are purged of all traces of their original personality and their bodies are reconstituted into Flood biomatter. The organism effectively becomes a pawn of the Flood's collective intelligence, to be used in any way it deems necessary.

In exceedingly rare cases, such as if the Pod infector has been damaged or is incredibly old, it will go through this process without killing the host, leaving them at least partially aware of what is going on, but unable to move or act. This was the fate of UNSC Private Wallace A. Jenkins during the raid on the "Covenant weapons cache" on Installation 04.[7] This aged version of the Pod infector must have been kept in captivity for far too long, thereby reducing its potential of complete transformation of its host into a Flood combat form. Jenkins survived infection, and even remained conscious, with short periods of time where he could exert control over his mutated body.

A Pod infector may abandon its host if the corpse has been heavily damaged, and look for a new one. If the Pod infector inside a combat form has been destroyed, but the combat form itself is intact enough to continue serving its purpose, loose Pod infector may burrow inside the body and take the place of the one that mutated it, effectively "re-animating" the combat form.

Pod infectors develop from a form vaguely resembling a larva or tadpole but bearing the basic superficial characteristics of a Pod infector. A number of Flood forms in this stage of their life cycle were kept in stasis by the Forerunners in Flood research facilities, such as the one in the Threshold gas mine.[8]

While an effective vector of infection against armored and shielded organisms as well as those equipped with atmospheric filters, a Pod infector is not necessary for the Flood to infect a host; merely ingesting Flood spores or inserting them via a wound is sufficient to initiate Flood conversion. Such infection may occur several seconds or perhaps minutes later, yet the transformation will occur almost instantaneously once it has begun.[9][10]

Effects on host forms

A carrier form spawning Pod infectors aboard the UNSC Spirit of Fire in 2537.

While any large life form with some level of awareness and/or sentience can be infected by a Pod infector, not all of them are suitable to serve the function of Combat Forms, the Flood's signature and preferred mobile form utilized during the Feral Stage. While these hosts are transformed in a similar fashion to the traditional combat forms, these forms are not often employed in front line combat for several reasons.

The first of these would be the fact that such life forms, despite their sophisticated nervous systems and adequate levels of sentience, simply lack the necessary biomass, calcium reserves, and physical strength to make first-choice combat units. More specifically, when a host life form is transformed, the activities of the Pod infector require not only the aforementioned levels of biomass, calcium content, and strength (Though humans become combat forms more often than the much larger and stronger unggoy for whatever reason.) but that the host has the physical endurance and stamina to withstand the process. Species such as humans, Forerunners, Sangheili, and the Jiralhanae are almost always turned into combat forms because their biology and physical properties enable them to withstand the Pod infectors' abilities, which are violent and resource-intensive.

In contrast, other life forms, such as the Kig-Yar, and perhaps the Yanme'e, lack these important qualities, or in the case of the Unggoy have other limitations due to their physique despite their perfectly adequate levels of sentience and neural complexity. Because of these factors, these hosts are primarily used for other but equally important purposes. These involve multiple mission profiles that are essential to the development of Flood outgrowth: establishment of mobile incubators, biomass and calcium reserves, hive structures, and the components of a coordinating and controlling intelligence.

When utilized for the creation of the hive and the central intelligence, the weaker hosts gather together and merge into single mass or a collection of masses spread around whatever environment the Flood have established themselves in. In this way, the weaker host forms serve as 'building blocks' for the creation of a Flood Hive, which if all goes according to its logical conclusion, will spawn a fully-developed collective and the next stage of the Flood's development: the Coordinated Stage and its crowning achievement, a Gravemind. Surrounding life forms such as significantly smaller animals as well as the full range of plants, microbes, lichens, and fungi, are seized by the growing Flood collective and digested as raw material to create more generic Flood biomass.

The next vital use for lesser hosts is to serve as the second signature form of the Feral Stage, the mobile Pod infector incubator known as a Carrier Form. While these are usually formed from weakened, damaged, and/or aged Combat Forms, weaker host forms are just as frequently employed for this purpose. The first step in the creation of a Carrier Form by this method involves a single appropriate host to function as a nucleus, which is then followed by one or more other weaker forms attaching themselves to the leading unit. The congregated hosts then fuse, with the external host forms being rapidly digested by the central form, with the result being that the other hosts have been reduced to extra, generic biomass, contributing to the structure of the now significantly distorted, bloated incubator.[11]

While this complex methodology is largely standard procedure for the Flood, there are occasionally exceptions to these rules due to the Flood's adaptive nature. In at least one notable campaign[12] early in the Human-Covenant War, this mode of operation was contradicted by the Flood. The outbreak present on this installation employed Kig-Yar and Unggoy quite frequently as front line combat units despite their inadequate status, and was also distinct from other outbreaks with the fact that it was predominantly formed out of life forms lacking sentience such as plants, fungi, etc., or those possessing lower levels of sentience, such as the wide range of animals living there.

Immunities and defenses

Energy shielding destroys Pod infectors on contact, causing them to explode in a small burst of gas and flesh. Conventional body armor is generally ineffective against Pod infectors; they can easily squeeze through gaps in armor plating, and their grasping tentacles can burrow through rubber, fabric or polymer (including MJLONIR MK V undersuits) in order to reach the flesh underneath.

Staff Sergeant Avery Johnson was thought by Dr. Catherine Halsey to be incompatible with Flood Pod infectors due to the fictitious "Boren's Syndrome"[13] — in reality a cover for the augmentations he received as part of the ORION Project.[14] However, it is apparent that Johnson's augmentations did not make him truly immune to the Flood conversion process itself, instead granting him the ability to fight off and escape the parasite more effectively than the baseline humans alongside him.[15][16][17]

The Mgalekgolo's lack of a central nervous system and nature as an invertebrate colony consisting of multiple worms likely make them immune to Flood infection.[18] The invertebrate nature of the Yanme'e, along with their hard, chitinous exoskeleton, would seem to make them immune as well. However, while their unique physiologies make standard infection difficult, it is likely that the Flood are still capable of consuming and converting Lekgolo and Yanme'e into Flood biomass.

Trivia

  • In Halo: Combat Evolved, if a Pod infector latches itself onto a Marine or one of the Covenant, instead of mutating the host, it will become irrevocably attached until the host is dead. If at least one Pod infector manages to leap onto an unshielded player in this game, it will deal a noticeable amount of damage (this will increase depending on difficulty and number of Pod infectors attached), fall off, and attempt to strike the player again. This effect on the player also appears in Halo 3.
  • An energy sword will not lose energy by killing Pod infectors in Halo 2 and Halo 3, but this method is highly ineffective as Pod infectors are extremely hard to hit with an Energy Sword.
  • Pod infectors do not add points to the player's meta-score when the campaign scoring is activated in Halo 3 and Halo: The Master Chief Collection. This is most likely because Pod infectors come in swarms, and could be used to rack up points with almost no effort.
  • Unlike in Halo: Combat Evolved and Halo 2, the Pod infectors in Halo 3 float in water. Thus, they cannot infect corpses that are in water ponds because of this animation.
  • In Halo Wars, when Sergeant Forge shoots the Flood Pod infectors that are attacking Professor Anders, they do not pop like all other Pod infectors. Instead, they simply fall lifelessly to the ground.
  • In Halo 3, code exists for a deleted "banger" variant of Pod infector, which would explode like a plasma grenade when destroyed.[19]
  • In Halo: Combat Evolved, Pod infectors are not affected by fall damage, most likely due to the script or slow speed during freefall.

Gallery

List of appearances

Sources