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Are you looking for the Halo 4 version? For other uses, see Camouflage (disambiguation).

A Spartan using active camouflage.

"One of those things is inside, and it is invisible!'"

Active camouflage (often shortened to active camo) refers to a broad range of optical camouflage technologies that conceal or cloak its user or an object from visual detection by rapidly adapting to its surroundings.^[2]^[3] Although active camouflage originated from the Covenant—also inherited and adapted by its remnants—similar technology was employed by the United Nations Space Command, with personal ppactive camouflage being directly reverse-engineered from its Covenant counterpart.^[2]

Covenant active camouflage conceals by bending and refracting light around its surface.

texture buffer and photoreactive panel

Personal active camouflage

Covenant usage

Human usage

Personal active camouflage

Covenant usage

Human usage

Both the UNSC^[4] and the Covenant use various forms of active camouflage technology, though the term is .

Technically, active camouflage is not quite invisibility, though it is very similar. Rather, the There are a variety of ways to do this, though the UNSC uses photoreactive panels on its Semi-Powered Infiltration armor and prowler stealth ships for optical camouflage, adapting to the object's background to account for movement. Meanwhile, Covenant active camouflage actually bends light around the camouflaged object,^[3] a task well within the Covenant's tier two technology level. The technology can be utilized on human armor systems, such as the MJOLNIR armor, but the UNSC has only developed rough equivalents.^[5]

Covenant active camouflage

"Show yourselves, assassins! The scent of your cloak is faint, but it still fouls the air."

— Atriox smelling active camouflage.^[6]

A camouflaged Stealth Sangheili aboard Cairo Station.

Covenant active camouflage technology uses a field of energy to bend light around the user, thus making them effectively invisible. The armor used by Spec-Ops and Stealth Sangheili, as well as that of Arbiters, Jiralhanae Stalkers and even certain Sangheili Zealots,^[7] include built-in active camouflage generators. These built-in generators have a severe drawback in that they divert power from shielding equipment. Troops equipped with permanent active camouflage generators tend to have weaker shielding than those not equipped with an active camouflage generator.

Arbiter Ripa 'Moramee was equipped with an active camouflage generator capable of generating a near-perfect cloaking field indefinitely. Arbiter Thel 'Vadam was also equipped with an active camouflage generator, but the device was capable only of providing a cloak for a few seconds, and although 'Vadam was equipped with personal shielding, his shields were relatively weak for an individual of such high rank, equivalent to those of a Sangheili Minor.

Aircraft or ships can also be equipped with active camouflage systems, including the Ru'swum-pattern Phantom that has its own active camouflage generators on board for various stealth missions,^[8] and the Klavbrig Workshop Shroud used by the Banished to cloak the advance of their armies.^[9] Larger vessels such as supercarriers, or entire armies, can be effectively hidden from both plain sight and sensors by using external stealth systems such as stealth pylons and Cloaking Generators.^[7]^[9]

For personnel not equipped with built-in active camouflage, it can be provided by a variety of devices. Typically, the energy used to provide the effect is suspended inside a small, transparent pyramidal container, or a larger spherical force-field. Personnel can use the light-bending energy by coming into physical contact with the container or force-field, which will cause it to break and release its contents. Upon release, the energy envelops the wearer and bends light around their skin; armor or energy shielding, conforming to their form and rendering them almost invisible. After a short period of time, the energy will gradually dissipate and wear off, slowly revealing its user. The active camouflage provided by these devices lasts for ten seconds, and only prevents visual detection; those using active camouflage can be observed by other means, including motion tracking, noise, and environmental disturbances such as footprints on soft terrain.

Function

"Trust me, because I heard… uhhh… from a friend, that if you have active camouflage on and do a crys, it makes a big sizzle sound and everybody can see me hidin' in the corner."

— Dimkee Hotay shares his bad experience with active camo.^[10]

Covenant active camouflage will easily cloak its user, but its effect does not completely extend to items in the user's possession; human weapons are easily cloaked by active camouflage, but Covenant weapons are visible even with active camo, as the light-bending energy cannot mask the glow of the weapons' plasma. In Halo: Combat Evolved, however, plasma glow is hidden quite well by the cloaking equipment.

Though active camouflage is quite effective from a distance, it can faintly be seen if an observer is close enough to the wearer. However, it is difficult to spot a camouflaged opponent from a distance using a scoped weapon—actual physical proximity is required to reliably spot a person using active camo. It should be noted, though, that active camouflage does not mask environmental effects such as footprints, meaning that it is not as effective on soft terrain such as snow.

The shielding provided by Covenant active camo can be disrupted if projectiles pass through it; such a disruption weakens the invisibility effect and temporarily reveals the wearer. The power-up can be disrupted if the wearer fires shots or if the wearer is hit. It also progressively worsens: the longer the wearer fires (or is hit), the more visible they become. Once the disruptions end, however, the wearer quickly regains their invisibility.

Talcum powder and other atmospheric particles can disrupt the systems, causing the technology to overload and fail.^[11] The device also generates a considerable amount of heat, causing its user to be clearly visible on human thermal goggles and some variations of the SRS99C-S2 AM sniper rifle.^[12] The humans of Alpha Base on Installation 04 used this advantage when their base was infiltrated by stealth Elites, equipping their fireteams with infrared goggles allowing them to easily see the attackers. In addition, SPARTAN-IIs William-043 and Kelly-087 employed talcum powder in order to overload the camouflage on Reach in order to find them.^[11] Atriox was able to detect the use of active camouflage through smell.^[6] However, it is possible he was just smelling the users themselves rather than the cloaking field, and was calling them out for its use.

During the Requiem Campaign, active camouflage was used to shield the seven HAVOK tactical nuclear weapons smuggled aboard the UNSC Infinity from detection by the ship's AI Roland. After Fireteam Crimson took out a Sangheili holding a cloaking remote, Roland realized this tactic. By tracking the energy signature from the cloaking generator, Roland was able to locate the warheads in the Engine Room and direct Crimson where to go to disarm them before they could be used to destroy the Infinity. Unlike conventional active camouflage, this type shielded the warheads from sensors but they could be physically seen by nearby persons without any issue.^[13] Later, in the Warrens, the Covenant hooked up active camouflage to their shield generators to prevent the human forces from finding and destroying them. Spartan Jared Miller was eventually able to identify the Sangheili who controlled the active camouflage and after Crimson took him out, the active camouflage dropped, revealing the generators.^[14]

After the death of Gek 'Lhar, his corpse was looted by Fireteam Majestic. Spartan Gabriel Thorne took Gek's active camouflage module^[15] which he subsequently used during the attempted rescue of Dr. Catherine Halsey.^[16]

UNSC active camouflage

ONI PRO-49776 disengaging its advanced cloaking field, an outlier in UNSC camouflaging technology during the Covenant War.

The UNSC has developed several varieties of active-camouflage technology. These do not utilize the same light-bending energy as Covenant active camouflage and are generally less effective. The most common form of human active camouflage technology operates on a different principle than the Covenant counterpart, using photoreactive panels to impersonate the surrounding environment like a chameleon. A device known as the camouflage cloak can hide the wearer's infrared signature, beside serving as a form of camouflage.^[4]

Roland-B210 with his camouflage activated.

The Semi-Powered Infiltration armor used by the Spartan-IIIs utilizes photo-reactive panels to conceal the wearer's infrared signature and to blend in with the surrounding environment. When combined with their natural talent and training for stealth, it can be a very effective tool. Some Headhunters used a prototype camouflage almost identical to the Covenant version, rendering them almost invisible, except that it only lasted 3–5 minutes and other systems have their power drained while it recharged. This feature saw very limited use in field tests by ODSTs.^[17]

A common human active camouflage device, copied from similar Covenant technology, comes in the form of a "plug" which attaches to a socket located on the lower back of compatible armor. The non-integral nature of the device allows it to be added or removed at will for improved operational flexibility. The device provides a conditionally effective cloak; as long as the user remains still or moves slowly, the camouflage will be highly efficient, providing near-total invisibility for minimal energy loss. However, if the user moves more quickly, the camouflage will only provide rudimentary coverage and drain its energy very rapidly. Firing a weapon will also disrupt the camouflage and reveal the user. Furthermore, external sounds will be highly muffled to the user while this camouflage is in use, and if the user is equipped with motion tracking equipment, the detection capability of the motion tracker will be severely compromised, jamming the display with "ghost" targets.^[18]

Much like the SPI armor, UNSC prowlers use texture buffers or "active camouflage skin" in conjunction with stealth ablative coatings to conceal themselves from view in addition to masking their heat and radar signatures.^[4] This camouflage is not perfect, however, and cannot keep up with a constantly changing background such as a gas giant's atmosphere.^[19] However, more advanced stealth ships were developed, such as ONI PRO-49776 using a form of cloak "bubble" similar to the light-bending energy fields used by the Covenant. This technology has not been observed in widespread use.^[20]

The MJOLNIR Powered Assault Armor [GEN2] system is capable of incorporating Covenant T-3 Refraction Dissonance Modifier/Camouflage modules for stealth.^[21]

Changes throughout Halo

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If the active camo is active during Campaign, the player is completely invisible to the AI enemies unless they fire their weapon. Active camouflage is only usable in Campaign when playing as the Arbiter in Halo 2, or if the player obtains the Envy Skull and restarts Campaign (active camo replaces Master Chief's flashlight). In Halo 3, rather than Active Camouflage, the slightly different Cloaking is available. It is also available as a powerup in five levels during Halo: Combat Evolved: The Truth and Reconciliation, Silent Cartographer, 343 Guilty Spark, Keyes, and Assault on the Control Room.

An interesting fact about Active Camouflage is that although the player can see the Type-1 energy sword-wielding Active Camo Elites in Halo: Combat Evolved (due to the sword), the Marines cannot see them; this is likely because the developers did not realize that the energy sword showed through the Active Camo, leading them to code the Marines' AI to be oblivious to it. This advantage is removed in Halo 2—the Elites now wait, only activating their swords when they're about to kill the player.

Halo 2

In Halo 2, it is noted that the Arbiter's armor, while possessing a built-in active camouflage generator, is not permanent, unlike the more modern generators used by Special Operations Elites. There is a circle on the player's HUD that shows the amount of time left (unfortunately, not shown numerically) for both the usage of the active camouflage and the recharging sequence. The Master Chief can gain this ability with the Envy Skull on Legendary only; however, his screen will lack the meter, forcing you to remember the time allowed for use.

When playing as the Arbiter, using any attack will cause the active camouflage to deactivate, and the player must wait for it to recharge before using it again.^[22]

Halo 3

Main article: Cloaking

In Halo 3, the Active Camo is no longer contained inside a pyramid construct. Instead it appears as a large, glowing sphere with what appears to be containment devices around it, enclosing the powerup in Halo 3 multiplayer; but unlike past Halo games, active camo is not found in campaign. In campaign, Active Camouflage is replaced by the Cloaking equipment, which functions in the same way as active camouflage once did. Melee attacks, shooting, throwing grenades and using equipment will negate the effect of the power-up. Also, wearing the Flaming Helmet is an obvious give-away to the opponent because the fire is still visible. By default, the pick-up lasts 30 seconds and doesn't dissipate with movement, unlike in Reach.

The quality of camouflage in custom games may be set to two different settings:^[23]

Poor Camo: The player has camouflage that might fool a Grunt.
- The player is still somewhat visible.
Good Camo: The player has camouflage that will fool an attentive Elite.
- This makes the player almost invisible, but the light is distorted within the player's shape.

Halo: Reach

The Active Camo in Halo: Reach has undergone many major changes. It is now available as an Armor Ability to both Spartan and Elite players. As a secondary effect, when used, it acts as a Radar Jammer, scrambling the radar of the user and all enemies within 25 meters, making the user harder for enemies to detect on their motion trackers. This function can be both beneficial and detrimental to the player; on the one hand, it can make enemies easier to ambush, however, it also informs the enemy team that someone is using Camo nearby. This can backfire on the player by making the enemy team more perceptive to possible ambushes. The Active Camo also greatly reduces the volume of all sounds for its user, making it more difficult to notice a grenade being thrown or a nearby enemy firing a weapon.

The strength or effectiveness of the Camo also varies depending on whether/how fast the user is moving. When standing still, the player is rendered almost completely invisible. Moving slowly or crouch-walking will slightly decrease the quality of cloaking, although the user is still hard to spot. When moving faster than crouch-walking speed, the Active Camo becomes much less effective, cloaking the user only partially (similar to the Poor Camo from Halo 3). The player's movement speed does not affect the rate at which the Armor Ability meter drains. The freedom for the player to control when they activate their camouflage makes it much more effective, as it allows for use in the most opportune situations, instead of restricting the player to activate it on pickup. However, the reduced hearing and radar jamming effects require the player to be more aware of his surroundings than usual,^[24] and must also take care not to move too fast.

Enemies in campaign and Firefight will detect the user after a while. As such, it is far less effective than previous iterations.

Halo: Combat Evolved Anniversary

Active camouflage now makes the user extremely hard to spot due to the enhanced graphics. Distortion also covers more the exact shape of the user, unlike previous iterations.

Halo 4

The Type-3 Refraction Dissonance Modifier/Camouflage bends light around a structure, hiding it via advanced pattern realignment. It is similar to the version in Halo: Reach, however the jammer no longer makes false hostile contacts appear on the motion sensor, rather it makes neutral contacts appear and in a much tighter grouping than before, therefore not only preventing the user from using it to trick enemies, but possibly giving away their location. Despite this, it still is an effective tool for hiding outside of cover and ambushing enemies.

Halo 5: Guardians

Active camouflage is now a powerup that can be picked up in Arena or requisitioned in Warzone. While active the user is invisible to the motion sensors of enemies as long as they are not sprinting. Moving while crouched no longer deteriorates the quality of camouflage, though moving faster would. It now displays a meter on the HUD that shows the remaining duration of the power up, and shortly before it runs out, the player will be notified via a quiet beeping sound.

Halo Wars 2

Shrouds are able to cloak themselves and other units. Let 'Volir is able to cloak units with leader abilities.

Halo Infinite

Active Camouflage is activated via an animation similarly to Halo 5: Guardians, although it can now be used at will. If the player is killed before they can use it, or while in the process of activating it, they will drop the powerup which can now be picked up by another player. Active camouflage in Halo Infinite behaves like a hybrid of the active camouflage seen in the original trilogy, and the active camo seen in all the games since Halo: Reach. If the player is simply moving and strafing, the camouflage remains consistent, but if they sprint or fire their weapon, the camo fades out. ^[25]

Non-canon and dubious canon appearances

Silver Timeline

Main article: Silver Timeline

Active camouflage is used by Covenant Sangheili.^[26]

Trivia

Changing the graphics card settings on Halo: Combat Evolved for PC (lowering the quality and effects) makes active camouflage users appear as an easily-seen gray, opaque silhouette.
In Halo: Combat Evolved, the flood can still see you if you use active camo.
Oddly enough, a group of Major and Minor Grunts in the Halo 2 level Delta Halo used Active Camouflage as they fought alongside a group of Stealth Elites. Spec Ops Grunts are also seen using this in the level The Arbiter just before entering the gas mine. This suggests that at least some Grunts have this equipment.
When used in association with an Overshield, the Active Camo becomes completely useless due to the charges of the overshield washing over the player's body (except in Halo: Combat Evolved). In Halo 3, the same effect occurs when Active Camouflage and Overshields are both working.
The active camouflage has no effect on the flames on the Bungie Armor, allowing enemies to more easily locate the user of the chest piece.
With the Envy skull on in Halo 2, the Master Chief's flashlight will be replaced with active camouflage. This can also be combined with a glitch which allows you to reload from a checkpoint, after saving and quitting, and turning off your console, with infinite active camouflage. This makes the Campaign on Halo 2 considerably easier, even on Legendary difficulty.
In any Halo game, when you have active camouflage on and you get in a vehicle, the camouflage stays on and appears as if there was a ghost driving it or that it was driving itself (works particularly well with the Warthog LAAG). It works with any vehicle which exposes the occupants to view.
In Halo 2 for Windows Vista, when playing on Threshold, your comrades are not picked up by radar when camouflaged.
The lights on a gravity hammer can be seen clearly when camouflaged. It is not recommended to have a Gravity Hammer either as your primary weapon or secondary weapon when using active camo, as the lights make you an easy target for experienced snipers.
In Halo 3, go in Monitor mode and find an Active Camouflage. Go inside it. After about 10–20 seconds, the Active Camo will stop making its shimmering noise and you'll hear a brief whispering sound (like a sigh or breath), and then it will continue its shimmering noise.
Strangely, the active camo module in the Halo: Reach Beta had "UNSC" printed on it, even when being used by Elites, though this is likely because it was a placeholder file.
The Overshield as well as Active camouflage were requested by Hardy LeBel as a feature for Halo: CE's multiplayer. The team working on the campaign saw that they were and added them too.

Gallery

A Stealth Elite using active camouflage in Halo: Combat Evolved.
Active Camo in Halo: Combat Evolved campaign.
Active Camo in Halo: Combat Evolved multiplayer.
Active camouflage on Halo: Combat Evolved for PC.
The Active Camouflage in Halo 2.
The Active Camouflage in Halo 3.
Bungie Armor and Active Camouflage in Halo 3.
The Active Camouflage powerup in Halo: Reach.
Multiple SpecOps Sangheili using active camouflage, with one also possessing Overshield.
Active Camouflage in use in Halo 4.
Active camouflage in Halo 2: Anniversary multiplayer.
A Spartan using active camouflage in Halo 2: Anniversary multiplayer.
REQ card for Active Camouflage in Halo 5: Guardians.
REQ Card for Active Camouflage II.
REQ Card for Active Camouflage III.
A Spartan-IV using active camouflage in Halo 5: Guardians.
HUD icon for the active camouflage in Halo Infinite.
Okro 'Vagaduun using active camo in Halo Infinite.
A Spartan-IV carrying an active camo module in Halo Infinite.
A Spartan-IV activating an active camo module in Halo Infinite.
A Spartan-IV with active camo in Halo Infinite.
A Sangheili with an active camo module in Halo: The Television Series.
The same Sangheili activating the active camo.

List of appearances

Halo: The Fall of Reach (First appearance)
Halo: Combat Evolved
Halo: The Flood
Halo: First Strike
Halo 2
Halo: Ghosts of Onyx
Halo 3
Halo Wars
Halo 3: ODST
Halo Legends
- The Package
Halo Evolutions - Essential Tales of the Halo Universe
- Headhunters
- The Impossible Life and the Possible Death of Preston J. Cole
Halo: Reach
Halo: Combat Evolved Anniversary
Halo 4: Forward Unto Dawn
Halo 4
- Spartan Ops
Halo: Spartan Assault
Halo 2: Anniversary
- Terminals
Halo: New Blood (Mentioned only)
Halo: Last Light
Halo 5: Guardians
Halo: Fractures
- Oasis
Halo: Smoke and Shadow
Halo: Tales from Slipspace
- Hunting Party
Halo Wars 2
Halo: Envoy
Halo: Collateral Damage
Halo: Official Spartan Field Manual (Mentioned only)
Halo: Shadows of Reach
Halo: Divine Wind
Halo Infinite
Halo: The Television Series
- Contact
Halo: The Rubicon Protocol
Halo: Outcasts

Sources

^ Halo 4: Forward Unto Dawn, episode 4
^ ^a ^b Halo Encyclopedia (2011 edition), page 355
^ ^a ^b Halo 4: The Essential Visual Guide, page 136 Cite error: Invalid <ref> tag; name "h4evg" defined multiple times with different content
^ ^a ^b ^c Halo: Ghosts of Onyx, page 291
^ Halo: The Fall of Reach
^ ^a ^b Hunting Party
^ ^a ^b Halo: Reach, campaign level Tip of the Spear
^ Halo 3, campaign level The Covenant
^ ^a ^b Halo Wars 2
^ Halo 5: Guardians, campaign level Alliance
^ ^a ^b Halo: First Strike
^ Halo: The Flood
^ Spartan Ops, S107 Invasion, Engine of Destruction
^ Spartan Ops, S108 Lancer
^ Spartan Ops, S108 Expendable
^ Spartan Ops, S109 Key
^ Halo: Evolutions - Essential Tales of the Halo Universe, Headhunters
^ Halo: Reach
^ Halo: Evolutions - Essential Tales of the Halo Universe, "The Impossible Life and the Possible Death of Preston J. Cole", page 477
^ Halo Legends, The Package
^ Halo Waypoint: Halo 4 Interactive Guide
^ Halo 2
^ Game Trailers: Custom Games Glitch Gameplay
^ Bungie.net: Halo: Reach Beta Survival Guide
^ YouTube - HALO, Halo Infinite | Multiplayer Overview (Retrieved on Jul 4, 2021)
^ Halo: The Television Series Season One, Contact

[1] Halo 4: Forward Unto Dawn, episode 4

[enc11-2] Halo Encyclopedia (2011 edition), page 355

[h4evg-3] Halo 4: The Essential Visual Guide, page 136 Cite error: Invalid <ref> tag; name "h4evg" defined multiple times with different content

[goo-4] Halo: Ghosts of Onyx, page 291

[5] Halo: The Fall of Reach

[HP-6] Hunting Party

[ReferenceA-7] Halo: Reach, campaign level Tip of the Spear

[8] Halo 3, campaign level The Covenant

[HW2-9] Halo Wars 2

[Alliance-10] Halo 5: Guardians, campaign level Alliance

[firststrike-11] Halo: First Strike

[12] Halo: The Flood

[13] Spartan Ops, S107 Invasion, Engine of Destruction

[14] Spartan Ops, S108 Lancer

[15] Spartan Ops, S108 Expendable

[16] Spartan Ops, S109 Key

[17] Halo: Evolutions - Essential Tales of the Halo Universe, Headhunters

[18] Halo: Reach

[19] Halo: Evolutions - Essential Tales of the Halo Universe, "The Impossible Life and the Possible Death of Preston J. Cole", page 477

[20] Halo Legends, The Package

[Waypoint-21] Halo Waypoint: Halo 4 Interactive Guide

[22] Halo 2

[23] Game Trailers: Custom Games Glitch Gameplay

[24] Bungie.net: Halo: Reach Beta Survival Guide

[mpoverview-25] YouTube - HALO, Halo Infinite | Multiplayer Overview (Retrieved on Jul 4, 2021)

[26] Halo: The Television Series Season One, Contact

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@@ Line 1: / Line 1: @@
-{{Era|HCW}}
+{{Status|Canon}}
-{{disambig header|the final battle of the [[Human-Covenant War]]|other battles on Installation 00|Battle of Installation 00 (disambiguation)}}
+{{Center|''Are you looking for the Halo 4 [[Type-3 active camouflage|version]]? For other uses, see [[Camouflage (disambiguation)]].''}}
-{{Battle infobox
-|prev=[[Battle for Earth]]
-*[[Operation: MARSH FLASH]]
-|conc=[[Operation: SUNSPEAR]]
-|next=*[[Raid on UNSC Infinity]]
-*[[Operation: FAR STORM]] {{c|[[Installation 00]]}}
-|name=Battle of Installation 00
-|image=[[File:H3 LesserArkConflict.png|400px]]
-|conflict=*[[Human-Covenant War]]
-*[[Great Schism]]
-|date= [[2552#December|December 11, 2552]]{{Ref/Site|Id=Fortitude|URL=http://halo.xbox.com/en-us/Universe/detail/a/bfe5038b-314a-4f17-a6be-f7613e0e3788|Site=Halo Waypoint|Page=Hero-Fortitude|D=9|M=5|Y=2012|local=Heroes Never Die#Hero-Fortitude}}
-|place= [[Installation 00]] {{c|the "Ark"}}
-|result= '''Decisive [[United Nations Space Command|UNSC]]/[[Fleet of Retribution|Sangheili]] victory'''
-*End of the [[Human-Covenant War]]{{Ref/Reuse|cov}}
-*Death of the [[Prophet of Truth]]{{Ref/Reuse|cov}}
-*All Covenant forces defeated{{Ref/Reuse|cov}}
-*Overall collapse of the [[Covenant]]{{Ref/Reuse|cov}}
-*Truth prevented from firing the [[Halo Array]]{{Ref/Reuse|cov}}
-*Flood-infested High Charity destroyed{{Ref/Reuse|cortana}}
-*Proceeded with the [[Raid on Installation 08]], leading to the destruction of [[Installation 08]], severe damage to the Ark and total defeat of the [[Flood]]{{Ref/Reuse|halo}}
-|side1=*{{Icon|UNSC HCW}} [[United Nations Space Command|UNSC]]
-**{{Icon|Navy}} [[UNSC Navy]]
-**[[UNSC Marine Corps]]
-**[[UNSC Air Force]]
-*{{Icon|Covenant FB}} [[Covenant separatists]]
-**[[Fleet of Retribution]]
-*{{Icon|Forerunner}} [[Sentinel|Forerunner constructs]]
-|side2=*{{Icon|Covenant FB}} [[Covenant]]†
-|side3=*[[Flood]]
-|commanders1=
-*[[Commander|CDR]] [[Miranda Keyes]]†{{Ref/Reuse|theark}}
-*[[Fleetmaster]] [[Rtas 'Vadum]]{{Ref/Reuse|theark}}
-*[[Arbiter]] [[Thel 'Vadam]]{{Ref/Reuse|theark}}
-*[[Sergeant Major|SGTMAJ]] [[Avery Johnson]]{{Ref/Reuse|theark}}
-*[[Master Chief Petty Officer|MCPO]] [[John-117]]{{Ref/Reuse|theark}}
-*[[Cortana]]{{Ref/Reuse|cortana}}
-*[[000 Tragic Solitude]]
-*[[343 Guilty Spark]]{{Ref/Reuse|theark}}
-|commanders2=
-*[[Hierarchs|High]] [[Prophet of Truth]]†
-*[[Jiralhanae Chieftain|Chieftain]] [[Cethegus]]†{{Ref/Reuse|theark}}
-*[[Shipmaster]] [[Hekabe]]{{Ref/Reuse|envoy}}
-|commanders3=[[Gravemind]]†
-|forces1=[[Fleet of Retribution]]/[[Seventh Fleet]]
-*18+ ships{{Ref/NoteReuse|fleetnumber}}
-**1 [[Sangheili]] [[battle group]]{{Ref/Note|Id=composition|See [[Fleet of Retribution#Notes|here]].}}
-***1+ {{Class|CAS|assault carrier}}{{Ref/Reuse|theark}}
-***9+ {{Class|CCS|battlecruiser}}s{{Ref/Reuse|theark}}
-**[[Battle Group Victory]]
-***2+ {{Class|Charon|light frigate}}s{{Ref/Reuse|theark}}{{Ref/Note|Id=AegisFate|Text=While [[Bungie]]'s [https://halo.bungie.net/News/content.aspx?type=topnews&link=Sandtrap_Postmortem Sandtrap postmortem] state that the ''[[Sandtrap]]'' (where the UNSC ''Aegis Fate'' stationed over the abandoned Jiralhanae base) took place on the "Waypoint" (which as later officially known as the Ark in ''Halo 3''), it is unknown if the map occurred during the Battle of Installation 00 but since it was originally intended by Bungie that the Ark would be [[Epilogue (Halo 3)|destroyed]] when [[Installation 08]] was prematurely activated as stated by [[Cortana]] in epilogue of ''Halo 3'', it is unlikely the map was intended to take place after the [[Raid on Installation 08]].}}
-*Many air vehicles
-**Numerous [[GA-TL1 Longsword]] fighters{{Ref/Reuse|theark}}
-**Numerous [[D77-TC Pelican]]s
-***[[D77H-TCI Pelican]]s{{Ref/Reuse|theark}}
-**Numerous [[AV-14 Hornet]]s{{Ref/Reuse|theark}}
-**1+ [[D96-TCE Albatross]]{{Ref/NoteReuse|AegisFate}}
-**Many [[Seraph|T-31 Seraph]] fighters
-***{{Pattern|Kai|Seraph}}s{{Ref/Reuse|theark}}
-**Numerous [[Type-52 Phantom#Retribution Phantom|T-52 Phantom]]{{Ref/Reuse|cov}}
-**Numerous [[Tarasque heavy fighter]]s
-*Many ground forces
-**1 [[SPARTAN-II program|SPARTAN-II supersoldier]]{{Ref/Reuse|theark}}
-**Numerous [[UNSC Marine Corps|marines]]{{Ref/Reuse|theark}}
-**Numerous [[Orbital Drop Shock Troopers|ODSTs]]{{Ref/Reuse|theark}}
-**Numerous [[Sangheili]]{{Ref/Reuse|cov}}
-*Ground vehicles
-**Several [[M12 Warthog]]s
-***[[M12 Chaingun Warthog]]s{{Ref/Reuse|theark}}
-***[[M12G1 Gauss Warthog]]s{{Ref/Reuse|cov}}
-**[[M274 Mongoose]]s{{Ref/Reuse|theark}}
-**[[M808 Scorpion]]s
-***[[M808C Scorpion]]s{{Ref/Reuse|theark}}
-*Numerous [[Sentinels]]
-**Numerous [[Aggressor Sentinel]]s{{Ref/Reuse|theark}}
-**Numerous [[Constructor]]s{{Ref/Reuse|theark}}
-**[[Forerunner automated turret|Automated turrets]]{{Ref/Reuse|theark}}
-*[[Mendicant Bias]]
-|forces2=[[Truth's fleet]]†
-*53+ [[Covenant starship|ships]]{{Ref/Note|Id=fleetnumber|Text=See [[Truth's fleet#Notes|Truth's fleet's Notes section]] regarding the size of Truth's fleet and the joint UNSC-Sangheili combined fleet, which could indicate that the latter was larger than seen in ''[[The Ark]]'' level's opening cutscene (which only show 10 Sangheili ships and one [[UNSC Forward Unto Dawn|single frigate]] for unknown reasons) at least 18 ships and it is even possible that the combined fleet would comprise of 2 entire [[Fleet of Retribution|Sangheili]] and [[Battle Group Victory|UNSC]] [[battle group]]s, in case at least 16 Sangheili warships (as seen in the ''[[Heretic]]'' map during the chase for ''[[Indulgence of Conviction]]'') and at least 7 UNSC {{Class|Charon|light frigate}}s (as seen on ''[[Halo Mythos]]''), hence at least 23 allied ships and at least 69 Jiralhanae enemy ships for the Prophet of Truth's fleet assuming that Sangheili Major's report on the size of Truth's fleet is accurate.}}
-**1 [[Forerunner]] [[keyship]]{{Ref/Note|Although present during the Battle of Installation 00, it did not participated in the [[space warfare|space battle]] over [[Installation 00]] as it landed on "[[Mahsko]]", a region of the Ark.}}
-**3+ {{Class|CAS|assault carrier}}s{{Ref/Reuse|theark}}
-**1+ {{Class|ORS|heavy cruiser}}{{Ref/Generic|Id=loot5|Heading=[[Halo Legendary Crate]]|Subheading=[[Halo Legendary Crate/Data Drops|Data Drop #5]]|Detail=[[:File:LC 05 Doc1.jpg|Apollo Leader To CDR S. Palmer]]}}{{Ref/Novel|Id=envoy|Novel=Halo: Envoy}}
-**47+ [[Covenant cruiser|cruisers]]{{Ref/Level|Halo 3|[[Tsavo Highway]]}}{{Ref/Note|See [[Battle of Kenya#Notes|Battle of Kenya's Notes section]]}}
-***Multiple {{Class|CCS|battlecruiser}}s{{Ref/Reuse|theark}}
-**1+ [[Covenant frigate|frigate]]{{Ref/Reuse|loot5}}
-*Many air vehicles
-**Many [[Seraph|T-31 Seraph]] fighters
-***{{Pattern|Kai|Seraph}}s{{Ref/Reuse|theark}}
-**Many [[Type-26 Banshee|T-26 Banshees]]
-***[[Type-26C Banshee|T-26C Banshees]]{{Ref/Reuse|theark}}
-**Many [[Type-52 Phantom|T-52 Phantoms]]{{Ref/Reuse|theark}}
-*Many ground vehicles
-**3+ [[Type-47B Scarab|T-47B Scarabs]]{{Ref/Reuse|theark}}{{Ref/Reuse|cov}}
-**[[Type-25 Chopper|T-25 Choppers]]{{Ref/Reuse|theark}}
-**[[Type-26 Wraith|T-26 Wraiths]]{{Ref/Reuse|theark}}
-***[[Type-52 Anti-Aircraft Wraith|T-52 AA Wraiths]]{{Ref/Reuse|theark}}
-**[[Type-32 Ghost|T-32 Ghosts]]{{Ref/Reuse|theark}}
-**[[Type-52 Prowler|T-52 Prowlers]]{{Ref/Reuse|theark}}
-*Numerous ground forces{{Ref/Reuse|theark}}
-**[[Jiralhanae]]
-**[[Kig-Yar]]
-**[[Unggoy]]
-**[[Yanme'e]]
-**[[Mgalekgolo]]
-|forces3=*[[High Charity]]†{{Ref/Reuse|cov}}
-*Multiple [[Flood dispersal pod|dispersal pods]]{{Ref/Reuse|cov}}
-*Multiple [[Flood combat form|combat forms]]{{Ref/Reuse|cov}}
-*Multiple [[Flood carrier form|carrier forms]]{{Ref/Reuse|cov}}
-*Multiple [[pod infector]]s{{Ref/Reuse|cov}}
-*Multiple [[Flood pure form|pure forms]]{{Ref/Reuse|cov}}
-|casual1= Moderate
-*[[Miranda Keyes]]{{Ref/Reuse|cov}}
-*Unknown amount of Sangheili and human ships
-*Numerous infantry losses
-*Many Sentinels
-|casual2=Near total
-*[[Prophet of Truth]]{{Ref/Reuse|cov}}
-*Most ships, if not all{{Ref/Reuse|theark}} {{c|save for ''[[Anodyne Spirit]]'' and ''[[Gathering of Praise]]''}}
-*Most ground forces, if not all{{Ref/Reuse|cov}}
-|casual3=Near total
-*''[[High Charity]]''{{Ref/Reuse|cortana}}
-*[[Gravemind]]{{Ref/Reuse|halo}}
-}}
-{{Quote|Our fight is through the [[Portal at Voi|Portal]], with the [[Jiralhanae|Brutes]] and the bastard [[Prophet of Truth|Truth]]!|[[Shipmaster]] [[Rtas 'Vadum]]{{Ref/Level|Id=floodgate|H3|Floodgate}}}}
-The '''Battle of Installation 00''', also known as the '''Ark Conflict''',{{Ref/Book|Halo: Warfleet|Page=48}} and designated by [[United Nations Space Command]] forces as '''Operation: BLIND FAITH''',{{Ref/Book|Id=Blind Faith|Enc09|Page=57}}{{Ref/Book|Enc11|Page=29}} was a large [[battle]] between the UNSC-[[Fleet of Retribution]] alliance, the [[Covenant]], the [[Flood]], and [[Forerunner]] [[Sentinel]]s on [[2552#December|December 11, 2552]].{{Ref/Reuse|Fortitude}}{{Ref/Level|Id=theark|H3|The Ark (level)|The Ark}}{{Ref/Level|Id=cov|H3|The Covenant (level)|The Covenant}}{{Ref/Reuse|halo}} It was the final overarching battle of the [[Human-Covenant War]] and was the last stand of the Covenant,{{Ref/Reuse|halo}}{{Ref/Level|Id=epi|H3|Epilogue (Halo 3 level)|Epilogue}} making it one of the few major engagements in the entire war in which the Covenant were on the defensive.
-After the [[Battle of the Citadel|collapse]] of the Covenant and the Battle of Installation 00, the [[Great Schism]] would continue as the [[Sangheili-Jiralhanae war]] and still ongoing as of [[2559]], after the [[Created]] [[Created conflict|uprising]] in [[2558#October|late 2558]].{{Ref/Novel|Evo|Section=The Return}}
+[[File:HCE Camo Sniper.jpg|thumb|250px|A [[Spartan-II|Spartan]] using active camouflage.]]
+{{Quote|One of those [[Sangheili|things]] is inside, and it is ''invisible!''|Cadet [[Thomas Lasky]]{{Ref/Film|H4FUD|Episode=4}}}}
+'''Active camouflage''' (often shortened to '''active camo''') refers to a broad range of optical [[camouflage]] technologies that conceal or cloak its user or an object from visual detection by rapidly adapting to its surroundings.{{Ref/Book|Id=enc11|Enc11|Page=355}}{{Ref/Book|Id=h4evg|H4EVG|Page=136}} Although active camouflage originated from the [[Covenant]]—also inherited and adapted by [[Covenant remnants|its remnants]]—similar technology was employed by the [[United Nations Space Command]], with personal ppactive camouflage being directly reverse-engineered from its Covenant counterpart.{{Ref/Reuse|enc11}}
-==Background==
+Covenant active camouflage conceals by bending and refracting light around its surface.
-===Battle of Installation 04 and 05===
-{{Main|Battle of Installation 04|Battle of Installation 05}}
-During the [[Battle of Installation 04]] in September 2552, the [[United Nations Space Command|UNSC]] [[Artificial intelligence|AI]] [[Cortana]] intercepted the [[Installation]]'s [[Activation index|Index]] as it was being inserted by [[John-117]] into [[the Core]] in the [[Control Room (Installation 04)|control room]]. Having prevented the activation of the ring, she kept the index even after she had been removed from the Installation's control room. She had also spent over twelve hours inside the control room's computer, gaining an incredible amount of information about the [[Halo Array|Halo]] installations,{{Ref/Level|HCE|Assault on the Control Room}}{{Ref/Level|HCE|Two Betrayals}} making her possibly the most knowledgeable regarding the operation of the Halo rings, the Forerunners, and the Ark - perhaps even more so than [[343 Guilty Spark]], who admitted he was quite ignorant of the [[Forerunner]] structures beyond Installation 04.{{Ref/Reuse|theark}}
-In November 2552, another battle on the next discovered Halo ring, the [[Battle of Installation 05]], included many events that would become major factors in the Battle of Installation 00. Cortana remained aboard the Covenant holy city, ''[[High Charity]]'', as the Flood and its central consciousness, the [[Gravemind]], took control of it.{{Ref/Level|Game=Halo 2|Level=[[High Charity (level)|High Charity]]}} From there, the Gravemind interrogated her, and she willingly answered its questions.{{Ref/Novel|Evo|Section=[[Human Weakness]]}} Meanwhile, the Covenant civil war, termed the [[Great Schism]], begun in ''High Charity'' and the space around Installation 05.{{Ref/Level|Game=Halo 2|Level=[[Gravemind (level)|Gravemind]]}} The recently-appointed Arbiter [[Thel 'Vadam]] and his Sangheili allies, in an effort to prevent [[Chieftain of the Jiralhanae]] [[Tartarus]] from activating the ring, formed an alliance with humans on the surface of Installation 05. With the help of Thel 'Vadam, [[Commander]] [[Miranda Keyes]] aborted the activation of Installation 05, but the installation's failsafe protocol had set all of the Halo rings to standby, where they could be activated from the central location of the Installation 00.{{Ref/Level|Id=TGJ|Game=Halo 2|Level=[[The Great Journey (level)|The Great Journey]]}}
+[[texture buffer]] and [[photoreactive panel]]
-===Battle for Earth===
+==Personal active camouflage==
-{{Main|Battle for Earth}}
+===Covenant usage===
-Shortly after escaping the Flood on ''High Charity'', the [[Prophet of Truth|High Prophet of Truth]] had arrived on [[Earth]], along with the rest of many [[High Charity defense fleet|Covenant loyalist ground and naval survivors]] from the Battle of Installation 05,{{Ref/Reuse|TGJ}}{{Ref/Level|Id=Truthfleet|Game=Halo 3|Level=Crow's Nest|Quote=The Prophet of Truth's ships breached the Lunar perimeter. Smashed what was left of the Home Fleet.|Quotee=Miranda Keyes}} where the excavation of a [[Portal at Voi|Forerunner structure]] under the planet surface was almost completed by the Jiralhanae-led [[Truth's fleet|support and excavation fleet]] sent by Truth [[Battle of Mombasa|earlier]].{{Ref/Film|Id=waypoint|Film=Halo Waypoint|Story=Ten Twenty|StoryLinkText=Ten Twenty}} Eventually Truth's forces uncovered and activated the structure, opening a [[slipspace portal]] that would take them to Installation 00, the Forerunner structure from which Truth can fire all of the Halo installations at once. As he departed through the Portal, the Flood-captured ship ''[[Indulgence of Conviction]]'' arrived on Earth and crashed, though its arrival was followed by a portion of the Sangheili [[Fleet of Retribution]] of at least 16 [[Covenant starship|warships]], led by [[Shipmaster]] [[Rtas 'Vadum]].{{Ref/Level|Halo 3|[[The Storm]]}}{{Ref/Map|Id=heretic|H3|Heretic}} From it, John-117 was able to extract a message from [[Cortana]], alerting them that ''High Charity'' was heading for Earth and cryptically stating that [[Installation 08|the "solution" to the problem of the Flood]] lays beyond the portal.{{Ref/Reuse|floodgate}}
+===Human usage===
-While [[Terrence Hood|Lord Terrence Hood]] was suspicious of Cortana's warning and objected to going through the portal, Commander Keyes, John-117, and Rtas 'Vadum all indicated their wish to proceed through the Portal. Unwilling to leave Earth defenseless against the incoming Flood threat, Lord Hood remained on Earth. He gave Miranda Keyes command of the {{UNSCShip|Forward Unto Dawn}} for the human commitment to the mission and the fleet of ships chased after the High Prophet of Truth.{{Ref/Reuse|floodgate}}
+==Personal active camouflage==
+===Covenant usage===
+===Human usage===
+----
-==Battle==
+Both the [[United Nations Space Command|UNSC]]<ref name="goo">'''[[Halo: Ghosts of Onyx]]''', ''page 291''</ref> and the [[Covenant]] use various forms of active camouflage technology, though the term is .
-===Space battle===
-[[File:H3 - Retribution Victory vs Truths Fleet.png|thumb|300px|Truth's Jiralhanae fleet confronts the Sangheili Fleet of Retribution]]
-{{Quote|multi=yes|q1=Brute ships. Staggered line! Shipmaster, they outnumber us, three-to-one!|Sangheili Major|q2=Then it is an even fight... All cruisers, fire at will! Burn their mongrel hides!|Rtas 'Vadum|Rtas' Vadum and a [[Sangheili Major]] upon reaching the Ark.{{Ref/Reuse|theark}}}}
-The Fleet of Retribution exited slipspace in the vicinity of the Ark on [[2552#December|December 11, 2552]], where they found [[Truth's fleet|the Prophet of Truth's fleet]] waiting for them. Despite being outnumbered three-to-one, Rtas 'Vadum declared that they were fairly matched, and the Sangheili ships and the ''Forward Unto Dawn'' promptly engaged Truth's fleet. In the ensuing [[space warfare|space battle]], the Jiralhanae and Sangheili cruisers blended into each other.{{Ref/Level|H3|The Ark (level)|The Ark|Quote=Their cruisers mixed with ours! Watch your fire!|Quotee=Jiralhanae Commander}} 'Vadum and Keyes coordinated their attacks against the Covenant fleet; whereas the Sangheili ships and the ''Dawn'' focused their attacks on the Covenant cruisers,{{Ref/Level|H3|The Ark (level)|The Ark|Quote=Let the Elites handle those cruisers!|Quotee=Miranda Keyes}} the ''Dawn''{{'}}s Longsword fighters engaged the Seraphs.{{Ref/Level|H3|The Ark (level)|The Ark|Quote=Stay away from those cruisers!|Quotee=Rtas 'Vadum}}{{Ref/Level|H3|The Ark (level)|The Ark|Quote=Understood. Engage those Seraphs!|Quotee=Miranda Keyes}} However, the ''Dawn'' was ill-equipped to fight against large opponents like ''CAS''-class assault carriers and ''CCS''-class battlecruisers. Thus, at the start of the battle, the ''Dawn'' deployed six [[D77H-TCI Pelican]]s to the surface to search for a landing zone for the ''Dawn'' and gather intelligence on Truth's location.{{Ref/Reuse|theark}}
+Technically, active camouflage is not quite invisibility, though it is very similar. Rather, the There are a variety of ways to do this, though the UNSC uses [[photoreactive panel]]s on its [[Semi-Powered Infiltration armor]] and [[prowler]] stealth ships for optical camouflage, adapting to the object's background to account for movement. Meanwhile, Covenant active camouflage actually ''bends light'' around the camouflaged object,<ref name="h4evg">'''[[Halo 4: The Essential Visual Guide]]''', ''page 136''</ref> a task well within the Covenant's [[Technological Achievement Tiers|tier two technology level]]. The technology can be utilized on human armor systems, such as the [[MJOLNIR Powered Assault Armor|MJOLNIR armor]], but the UNSC has only developed rough equivalents.<ref>'''[[Halo: The Fall of Reach]]'''</ref>
-The Forerunner [[Keyship]], ''[[Anodyne Spirit]]'', did not participate in the space battle.{{Ref/Reuse|theark}} Instead, it landed amidst a Forerunner city within a region of the Ark later referred to as [[Mahsko]] by the [[Banished]].{{Ref/Reuse|Id=Sacrifice}} A detachment of Covenant warriors were assigned to protect the vessel as Truth left to activate the [[Halo Array]].{{Ref/Novel|Id=Sacrifice|HSoR|Detail= Adjunct - [[Sacrifice]]}}
+==Covenant active camouflage==
+{{Quote|Show yourselves, assassins! The scent of your cloak is faint, but it still fouls the air.|[[Atriox]] smelling active camouflage.<ref name="HP">'''[[Hunting Party]]'''</ref>}}
+[[File:HCE Stealth Elite in AC.png|thumb|200px|A camouflaged [[Stealth Sangheili]] aboard ''[[Cairo Station (station)|Cairo Station]]''.]]
+Covenant active camouflage technology uses a field of energy to bend light around the user, thus making them effectively invisible. The armor used by [[Special Operations Sangheili|Spec-Ops]] and [[Stealth Sangheili]], as well as that of [[Arbiter]]s, [[Jiralhanae Stalker]]s and even certain [[Sangheili Zealot]]s,<ref name="ReferenceA">'''Halo: Reach''', campaign level ''[[Tip of the Spear]]''</ref> include built-in active camouflage generators. These built-in generators have a severe drawback in that they divert power from shielding equipment. Troops equipped with permanent active camouflage generators tend to have weaker shielding than those not equipped with an active camouflage generator.
-Although the space battle went on concurrently with the opening skirmishes on the surface of the Ark, the Sangheili fleet would make short work of the Covenant fleet due to the Jiralhanae being outmatched by the Sangheili in their knowledge of naval warfare.{{Ref/Book|Id=Mythos122|Halo Mythos|Page=122}} At least two Sangheili ships would survive the battle: the flagship ''CAS''-class assault carrier ''[[Shadow of Intent]]'' and the ''CCS''-class battlecruiser ''[[Pious Inquisitor]]''.{{Ref/Reuse|theark}}{{Ref/Novel|Halo: The Thursday War|Chapter=?}} On the Covenant side, the {{Class|ORS|heavy cruiser}} ''[[Foebane|Gathering of Praise]]'', led by [[Jiralhanae Chieftain]] [[Hekabe]], abandoned the Covenant forces and landed on the installation surface in search of a device known as the ''[[vertex]]''.{{Ref/Reuse|envoy}}
+Arbiter [[Ripa 'Moramee]] was equipped with an active camouflage generator capable of generating a near-perfect cloaking field indefinitely. Arbiter [[Thel 'Vadam]] was also equipped with an active camouflage generator, but the device was capable only of providing a cloak for a few seconds, and although 'Vadam was equipped with personal shielding, his shields were relatively weak for an individual of such high rank, equivalent to those of a [[Sangheili Minor]].
-{{clear|left}}
+Aircraft or ships can also be equipped with active camouflage systems, including the {{Pattern|Ru'swum|Phantom}} that has its own active camouflage generators on board for various stealth missions,<ref>'''Halo 3''', campaign level ''[[The Covenant (level)|The Covenant]]''</ref> and the [[Klavbrig Workshop Shroud]] used by the [[Banished]] to cloak the advance of their armies.<ref name="HW2">'''[[Halo Wars 2]]'''</ref> Larger vessels such as [[Covenant supercarrier|supercarriers]], or entire armies, can be effectively hidden from both plain sight and sensors by using external stealth systems such as [[stealth pylon]]s and [[Cloaking Generator]]s.{{Ref/Reuse|ReferenceA}}{{Ref/Reuse|HW2}}
-===Search for the Cartographer===
-{{Main|Battle for the Cartographer (Installation 00)}}
-The Pelicans deployed by the ''Forward Unto Dawn'' arrived on the surface of the Ark, where they deployed [[UNSC Marine Corps|Marines]] and UNSC vehicles to search for a landing zone for the ''Dawn''. ''[[Kilo 023]]'' and another Pelican deployed [[Master Chief Petty Officer]] John-117 and a squad of [[Orbital Drop Shock Trooper|ODSTs]] at a cliff edge, near a series of Forerunner structures built into the desert terrain. Nearby, a third Pelican, which carried a [[M12 Chaingun Warthog|Warthog]], two [[M274 Mongoose|Mongooses]], and [[UNSC Marine Corps|Marines]] including [[Chips Dubbo]], found a wide cliff which could serve as a landing zone for the ''Dawn'', but the Pelican was shot down by Covenant anti-air defenses.{{Ref/Reuse|theark}}
-With support from his accompanying ODST squad and his [[SRS99D-S2 AM sniper rifle]], John-117 cleared out two Covenant camps of Jiralhanae, Unggoy, and Kig-Yar. At the second camp, they disrupted the Covenant's efforts to assemble a [[Type-27 Mantis|Mantis]]. Emerging on the other side of the Forerunner structures, they linked up with Dubbo and other survivors seeking refuge from the downed Pelican, where a lance of Covenant searched for survivors. Dubbo informed John-117 of the potential landing zone for the ''Dawn''. Upon defeating the Covenant patrol at the Pelican, a pair of [[Type-52 Prowler|Prowlers]] arrived at the area, but their operators were eliminated by the UNSC. Salvaging both UNSC and Covenant vehicles, John-117 and his team advanced into the Covenant-occupied canyon. At this point, the Covenant have set up an attack force of infantry and [[Type-26 Shade]]s at a nearby [[Forerunner]] wall, which was defended by [[Aggressor Sentinel]]s. John-117 and his team eliminated the Covenant attackers, and the Sentinels, recognizing the humans as [[Reclaimer]]s, withheld their attacks. [[Sergeant Major]] [[Avery Johnson]], onboard ''Kilo 023'', spotted a structure that was similar to the [[Cartographer]] of [[Installation 04]] on the other side of the wall, and Keyes set the structure as the objective.{{Ref/Reuse|theark}}
+For personnel not equipped with built-in active camouflage, it can be provided by a variety of devices. Typically, the energy used to provide the effect is suspended inside a small, transparent pyramidal container, or a larger spherical force-field. Personnel can use the light-bending energy by coming into physical contact with the container or force-field, which will cause it to break and release its contents. Upon release, the energy envelops the wearer and bends light around their skin; armor or [[energy shielding]], conforming to their form and rendering them almost invisible. After a short period of time, the energy will gradually dissipate and wear off, slowly revealing its user. The active camouflage provided by these devices lasts for ten seconds, and only prevents visual detection; those using active camouflage can be observed by other means, including motion tracking, noise, and environmental disturbances such as footprints on soft terrain.
-[[File:Ark Level Scorpion.jpg|thumb|left|300px|UNSC ground forces battling in the desert.]]
+===Function===
+{{Quote|Trust me, because I heard… uhhh… from a friend, that if you have active camouflage on and do a crys, it makes a big sizzle sound and everybody can see me hidin' in the corner.|[[Dimkee Hotay]] shares his bad experience with active camo.<ref name="Alliance">'''[[Halo 5: Guardians]]''', campaign level ''[[Alliance]]''</ref>}}
+Covenant active camouflage will easily cloak its user, but its effect does not completely extend to items in the user's possession; [[human]] [[weapons]] are easily cloaked by active camouflage, but Covenant weapons are visible even with active camo, as the light-bending energy cannot mask the glow of the weapons' plasma. In ''Halo: Combat Evolved'', however, plasma glow is hidden quite well by the cloaking equipment.
-The landing zone was occupied by Ghosts, a [[Type-26 Wraith|Wraith]], several [[deployable lookout tower]]s, Jiralhanae and Unggoy infantries, and two [[Type-52 Anti-Aircraft Wraith|Anti-Air Wraiths]] that were firing into an aerial battle between [[Type-26 Banshee|Banshees]] and [[AV-14 Hornet|Hornets]]. John-117 and his team, having gathered more Marine survivors, cleared the landing zone, allowing the ''Forward Unto Dawn'' to disengage from the space battle and descend to the surface of the installation, landing safely. From the ''Dawn''{{'}}s hangar, the UNSC was reinforced with three [[M808C Scorpion|Scorpion]] tanks, a [[M12 Chaingun Warthog|Warthog]] and a unit of Marines led by [[Gunnery Sergeant]] [[Marcus Stacker]]. With [[343 Guilty Spark]] having arrived to guide them, the mechanized force then fought their way back to the Forerunner wall, destroying numerous Covenant vehicles and ground troops. The Covenant had retaken the wall, bolstering their defenses with Wraiths, Choppers, and Shade turrets, but they failed to deter the UNSC's progress.{{Ref/Reuse|theark}}
+Though active camouflage is quite effective from a distance, it can faintly be seen if an observer is close enough to the wearer. However, it is difficult to spot a camouflaged opponent from a distance using a scoped weapon—actual physical proximity is required to reliably spot a person using active camo. It should be noted, though, that active camouflage does not mask environmental effects such as footprints, meaning that it is not as effective on soft terrain such as snow.
-After entering the wall and emerging from the other side, the UNSC encountered a [[Type-47B Scarab|Scarab]]. Although the Scarab quickly left the area, the canyon leading from the wall to the Cartographer was defended by a battalion-sized force of Covenant heavy armor, including Choppers, Ghosts, Wraiths, and infantry with [[Type-33 fuel rod gun|heavy weapons]], reinforced by a Phantom. Two of the three Warthogs, which emerged from the wall first, were quickly overwhelmed, and their operators were killed. A single [[M12G1 Gauss Warthog]], taking a winding path to the side, was harassed by Ghosts and lost its gunner, though it regrouped with John-117, who had left the group earlier when they travel across the wall. The Spartan commandeered the vehicle and rejoined the Scorpion tanks. John-117 and Stacker then led the Scorpions against the Covenant armor. When the UNSC forces broke through the Covenant defenses, the Scarab returned to the area, with Choppers as its escorts. Stacker ordered Marines from Bravo unit to flank the Scarab to cover John-117's assault on the Scarab. They succeed, with John-117 personally taking down the Scarab. After the Scarab's destruction, the ''[[Shadow of Intent]]'' arrived at the Cartographer, and Rtas 'Vadum announced that his fleet had destroyed Truth's fleet.{{Ref/Reuse|theark}}
+The shielding provided by Covenant active camo can be disrupted if projectiles pass through it; such a disruption weakens the invisibility effect and temporarily reveals the wearer. The [[power-up]] can be disrupted if the wearer fires shots or if the wearer is hit. It also progressively worsens: the longer the wearer fires (or is hit), the more visible they become. Once the disruptions end, however, the wearer quickly regains their invisibility.
-[[File:H3 TanksVsScarab.png|250px|thumb|right|Scorpion Tanks battle a Scarab in the desert.]]
+Talcum powder and other atmospheric particles can disrupt the systems, causing the technology to overload and fail.<ref name="firststrike">'''[[Halo: First Strike]]'''</ref> The device also generates a considerable amount of heat, causing its user to be clearly visible on human thermal goggles and some variations of the [[SRS99C-S2 AM sniper rifle]].<ref>'''[[Halo: The Flood]]'''</ref> The humans of [[Alpha Base (Installation 04)|Alpha Base]] on [[Installation 04]] used this advantage when their base was infiltrated by stealth Elites, equipping their [[fireteam]]s with infrared goggles allowing them to easily see the attackers. In addition, [[SPARTAN-II program|SPARTAN-IIs]] [[William-043]] and [[Kelly-087]] employed talcum powder in order to overload the camouflage on [[Reach]] in order to find them.{{Ref/Reuse|firststrike}} [[Atriox]] was able to detect the use of active camouflage through smell.{{Ref/Reuse|HP}} However, it is possible he was just smelling the users themselves rather than the cloaking field, and was calling them out for its use.
-Encountering resistance from Jiralhanae and Kig-Yar on the way, John-117 climbed a series of ramps towards the entrance to the Cartographer. At the top, he met with [[Thel 'Vadam]], who dismounted from ''Kilo 023'' along with a pair of Marines. While Commander Keyes assembled an air support force to prevent Covenant reinforcements, 343 Guilty Spark unlocked the sealed door at the entrance, allowing John-117 and Thel 'Vadam to advance inside. Their arrival caught most of its Covenant occupants off-guard, and they eventually arrived at an exterior platform hosting the Cartographer terminal. The Chief and 343 Guilty Spark accessed the terminal, learning the installation as the "Ark" and that Truth had already fortified himself at [[Installation 00 Citadel|the core of the Ark]], where he could remotely activate the entire Halo Array. Furthermore, Truth had activated a large barrier around the entire core to ward off the attacking forces.{{Ref/Reuse|theark}}
+During the [[Requiem Campaign]], active camouflage was used to shield the [[seven]] [[HAVOK tactical nuclear weapon]]s smuggled aboard the {{UNSCShip|Infinity}} from detection by the ship's AI [[Roland]]. After [[Fireteam Crimson]] took out a Sangheili holding a cloaking remote, Roland realized this tactic. By tracking the energy signature from the cloaking generator, Roland was able to locate the warheads in the Engine Room and direct Crimson where to go to disarm them before they could be used to destroy the ''Infinity''. Unlike conventional active camouflage, this type shielded the warheads from sensors but they could be physically seen by nearby persons without any issue.<ref>'''Spartan Ops''', [[S1/Invasion/Engine of Destruction|S107 ''Invasion'', ''Engine of Destruction'']]</ref> Later, in the [[Warrens]], the Covenant hooked up active camouflage to their shield generators to prevent the human forces from finding and destroying them. Spartan [[Jared Miller]] was eventually able to identify the Sangheili who controlled the active camouflage and after Crimson took him out, the active camouflage dropped, revealing the generators.<ref>'''Spartan Ops''', [[Expendable/Lancer|S108 ''Lancer'']]</ref>
-After learning of Truth's location, they were attacked by a Phantom, one of the many aircrafts from the Covenant's aerial attack on the Cartographer. Thel 'Vadam drew the Phantom's fire, allowing the Chief to escort Spark clear. 'Vadam then hijacked a Banshee and joined Keyes' air support to repel the Covenant attack. Notified by Dubbo, John-117 was instructed to descend to a platform underneath the Cartographer for extraction. The Spartan fought his way down, defeating a [[Jiralhanae War Chieftain|War Chieftain]], his [[Jiralhanae Bodyguard|Bodyguards]], and a group of [[Cloaking|camouflaged]] [[Jiralhanae Stalker]]s along the way.{{Ref/Reuse|theark}} At the platform underneath the Cartographer terminal, [[Jiralhanae Chieftain]] [[Cethegus]] regrouped with the [[Jiralhanae Jumper|Jumpers]] from his pack. Cethegus and the members of his pack were charged with halting the UNSC-Sangheili progress. Believing he would ascend to the title of Chieftain of the Jiralhanae for killing the Spartan, the ambitious Chieftain challenged John-117 to a duel.{{Ref/Site|URL=https://www.halowaypoint.com/en-us/news/canon-fodder-brute-force|Site=Halo Waypoint|Page=Canon Fodder - Brute Force|D=11|M=10|Y=2021}} Despite being outnumbered, John-117 defeated Cethegus' pack as well as two Kig-Yar marksmen. Meanwhile, the Hornets under Keyes' command have destroyed the Banshee attack force, putting an end to the conflict at the Cartographer.{{Ref/Reuse|theark}}
+After the death of [[Gek 'Lhar]], his corpse was looted by [[Fireteam Majestic]]. Spartan [[Gabriel Thorne]] took Gek's active camouflage module<ref>'''Spartan Ops''', [[Expendable|S108 ''Expendable'']]</ref> which he subsequently used during the attempted rescue of Dr. [[Catherine Halsey]].<ref>'''Spartan Ops''', [[S1/Key|S109 ''Key'']]</ref>
-''Kilo 023'' arrived to pick up John-117, but a massive swarm of Sentinels approached the Pelicans. Initially, the UNSC prepared to attack, but they stopped when 343 Guilty Spark asked them not to attack the Sentinels, stating that the Sentinels had a "priority task" of unknown nature. Instead of attacking, the Aggressors flew off into the distance, and the UNSC and Sangheili followed suit, making their way to the Installation 00 Citadel to stop the Prophet of Truth.{{Ref/Reuse|theark}}
+==UNSC active camouflage==
+[[File:ONIPRO 01.png|thumb|250px|''[[ONI PRO-49776]]'' disengaging its advanced cloaking field, an outlier in UNSC camouflaging technology during the [[Covenant War]].]]
+The UNSC has developed several varieties of active-camouflage technology. These do not utilize the same light-bending energy as Covenant active camouflage and are generally less effective. The most common form of human active camouflage technology operates on a different principle than the Covenant counterpart, using [[photoreactive panel]]s to impersonate the surrounding environment like a chameleon. A device known as the [[camouflage cloak]] can hide the wearer's infrared signature, beside serving as a form of camouflage.{{Ref/Reuse|goo}}
+[[File:Headhunters Roland camo.jpg|thumb|250px|[[Roland-B210]] with his camouflage activated.]]
+The [[Semi-Powered Infiltration armor]] used by the [[SPARTAN-III program|Spartan-IIIs]] utilizes photo-reactive panels to conceal the wearer's infrared signature and to blend in with the surrounding environment. When combined with their natural talent and training for stealth, it can be a very effective tool. Some [[Headhunters]] used a prototype camouflage almost identical to the Covenant version, rendering them almost invisible, except that it only lasted 3–5 minutes and other systems have their power drained while it recharged. This feature saw very limited use in field tests by [[Orbital Drop Shock Trooper|ODSTs]].<ref>'''[[Halo: Evolutions - Essential Tales of the Halo Universe]]''', ''[[Headhunters]]''</ref>
-{{clear|left}}
+A common human active camouflage device, copied from similar Covenant technology, comes in the form of a "plug" which attaches to a socket located on the lower back of compatible armor. The non-integral nature of the device allows it to be added or removed at will for improved operational flexibility. The device provides a conditionally effective cloak; as long as the user remains still or moves slowly, the camouflage will be highly efficient, providing near-total invisibility for minimal energy loss. However, if the user moves more quickly, the camouflage will only provide rudimentary coverage and drain its energy very rapidly. Firing a weapon will also disrupt the camouflage and reveal the user. Furthermore, external sounds will be highly muffled to the user while this camouflage is in use, and if the user is equipped with motion tracking equipment, the detection capability of the motion tracker will be severely compromised, jamming the display with "ghost" targets.<ref>'''[[Halo: Reach]]'''</ref>
-===Battle of the Citadel===
+Much like the SPI armor, UNSC [[prowler]]s use [[texture buffer]]s or "active camouflage skin" in conjunction with [[stealth ablative coating]]s to conceal themselves from view in addition to masking their heat and radar signatures.{{Ref/Reuse|goo}} This camouflage is not perfect, however, and cannot keep up with a constantly changing background such as a gas giant's atmosphere.<ref>'''Halo: Evolutions - Essential Tales of the Halo Universe''', "The Impossible Life and the Possible Death of Preston J. Cole", ''page 477''</ref> However, more advanced stealth ships were developed, such as ''[[ONI PRO-49776]]'' using a form of cloak "bubble" similar to the light-bending energy fields used by the Covenant. This technology has not been observed in widespread use.<ref>'''[[Halo Legends]]''', ''[[The Package (animated short)|The Package]]''</ref>
-{{main|Battle of the Citadel}}
-[[File:Trident11.jpg|thumb|left|300px|UNSC and Sangheili forces spearhead their final assault on The High Prophet of Truth.]]
-On the same day, December 11, 2552, the UNSC-Sangheili alliance arrived at vicinity of the core of Installation 00. An assault team, composed of five Pelican dropships and a pair of Sangheili Phantoms, began their attack on a trio of [[Barrier tower|towers]] that, once disabled, would deactivate the barrier protecting the Citadel in which the Prophet of Truth was located. Two Pelicans, including ''Kilo 023'' which carried John-117 and an ODST led by Gunnery Sergeant Stacker, would attack the Tower One. The Phantoms, which carried Thel 'Vadam and his Sangheili (including [[N'tho 'Sraom]] and [[Usze 'Taham]]),{{Ref/Novel|Halo: Hunters in the Dark|Chapter=?}} would assault the middle tower. The other Pelicans, ferrying Sergeant Johnson and his squad, would disable the final tower. ''Kilo 023'' deployed John-117, along with Stacker and his ODSTs, at a distance from the first tower after an Anti-Aircraft Wraith shot down the second Pelican carrying Marines and a Warthog. Defeating the War Chieftain, his entourage, and the Wraith, Commander Keyes' Pelican deployed a new Warthog and a Mongoose at the beachhead for the team. Meanwhile, the ''Shadow of Intent'' began a diversionary bombardment against the barrier, firing [[plasma torpedo]]es at the barrier shield.{{Ref/Reuse|cov}}
+The [[MJOLNIR Powered Assault Armor (GEN2)|MJOLNIR Powered Assault Armor [GEN2]]] system is capable of incorporating Covenant [[Type-3 active camouflage|T-3 Refraction Dissonance Modifier/Camouflage]] modules for stealth.<ref name="Waypoint">[http://www.halowaypoint.com/en-US/Halo4Guide '''Halo Waypoint:''' ''Halo 4 Interactive Guide'']</ref>
-While John-117 and his team traveled to the first tower, 'Vadam and Johnson, along with their teams, touched down at the second and third towers, respectively. Although John-117 and 'Vadam succeed in disabling two of the three towers, Johnson was ambushed by enemy reinforcements, and lost contact with the UNSC soon after. The Jiralhanae captured Johnson, and took him to the Citadel. The UNSC-Sangheili troops launched a second assault on the third tower, with John-117 escorting the dropships in an AV-14 Hornet. They first destroyed Covenant Banshees and a Phantom, securing air control outside the barrier. The third tower was heavily defended by a pair of AA Wraiths, Shades, another standard Wraith, and a huge group of Jiralhanae led by War Chieftain. Destroying the Brute defenders outside the third tower, John-117, Thel 'Vadam, and a team of five Sangheili proceeded inside, where they discovered the corpses of Johnson's team, except for Johnson. Aftering the defending forces of Mgalekgolo, Yanme'e and Jiralhanae were eliminated, John-117 disabled the barrier tower, finally deactivating the barrier. The ''Shadow of Intent'' advanced towards the Citadel, but 'Vadum's attack was interrupted by the arrival of the Flood-infested ''High Charity'', which arrived via slipspace. ''High Charity'' launched debris that crippled the carrier and its weapons systems, forcing the ''Shadow of Intent'' to retreat. It also launched [[Flood dispersal pod]]s and began spreading Flood across the Ark. Keyes insisted that the Flood's arrival would only pressure Truth into activating the rings, and ordered the remaining ground forces to attack the Citadel.
+==Changes throughout ''Halo''==
+{{Cleanup|Section}}
+If the active camo is active during [[Campaign]], the player is completely invisible to the AI enemies unless they fire their weapon. Active camouflage is only usable in Campaign when playing as the [[Thel 'Vadam|Arbiter]] in ''[[Halo 2]]'', or if the player obtains the [[Halo 2 skulls#Envy|Envy Skull]] and restarts Campaign (active camo replaces Master Chief's flashlight). In ''[[Halo 3]]'', rather than Active Camouflage, the slightly different [[Cloaking]] is available. It is also available as a powerup in five levels during ''[[Halo: Combat Evolved]]'': [[The Truth and Reconciliation]], [[Silent Cartographer]], [[343 Guilty Spark (level)|343 Guilty Spark]], [[Keyes]], and [[Assault on the Control Room]].
-[[File:Banshee cov.jpg|thumb|right|300px|Covenant air forces engaging UNSC/Sangheili forces.]]
+An interesting fact about Active Camouflage is that although the player can see the [[Type-1 energy sword]]-wielding Active Camo Elites in ''Halo: Combat Evolved'' (due to the sword), the [[UNSC Marine Corps|Marines]] cannot see them; this is likely because the developers did not realize that the energy sword showed through the Active Camo, leading them to code the Marines' AI to be oblivious to it. This advantage is removed in ''Halo 2''—the Elites now wait, only activating their swords when they're about to kill the player.
-During this time, the [[Jiralhanae Chieftain]] [[Hekabe]] decided to use the distraction from the Flood arrival to locate the ''[[vertex]]'' hidden on the Ark. The control device for the [[Sharquoi]], the ''vertex'' would allow Hekabe to control the creatures. Though the Prophets had some Sharquoi themselves, they had lacked the ''vertex'' and so could not control them and never unleashed them. Hekabe intended to use the ''vertex'' and the Sharquoi to gain power for himself and so fled the Ark with his loyalists before the battle ended despite fighting on the side of the Covenant.{{Ref/Reuse|envoy}}
+===''Halo 2''===
+In ''Halo 2'', it is noted that the Arbiter's armor, while possessing a built-in active camouflage generator, is not permanent, unlike the more modern generators used by Special Operations Elites. There is a circle on the player's HUD that shows the amount of time left (unfortunately, not shown numerically) for both the usage of the active camouflage and the recharging sequence. The Master Chief can gain this ability with the Envy Skull on Legendary only; however, his screen will lack the meter, forcing you to remember the time allowed for use.
-Fighting through the Flood to exit the third tower, John-117 and the Sangheili regrouped with Gunnery Sergeant Stacker's Marines, now supported by a Scorpion, a Gauss Warthog, and a Mongoose. The humans and Sangheili fought through the cliffs to the area outside the Citadel, where the Covenant have set up lookout towers, Shade turrets, and ground vehicles. The Covenant attempted to reinforce their troops by a large amount of Banshees, but the UNSC air forces counterattacked with Hornets and Pelican gunships. The ground forces led by John-117 punched through the remaining Covenant armor on the mountainside. With the UNSC's arrival imminent, the Covenant deployed two final Scarabs, each commanded by a Jiralhanae War Chieftain, at the entrance to the Citadel, further supported by Prowlers, Ghosts, and Banshees. However, their efforts were in vain, and, with the Scarabs destroyed by John-117, any remaining Covenant stragglers were soon moped up by the UNSC.{{Ref/Reuse|cov}}
+When playing as the Arbiter, using any attack will cause the active camouflage to deactivate, and the player must wait for it to recharge before using it again.<ref>'''[[Halo 2]]'''</ref>
-[[File:H3 CitadelBattle.jpg|300px|left|thumb|The massive final battle of the Human-Covenant war on Truth's doorstep.]]
+===''Halo 3''===
-While the Flood began climbing up the Citadel's far wall, John-117 and Thel 'Vadam led a small attack force, including N'tho 'Sraom, Usze 'Taham, as well as a few Marines and Sangheili, into the Citadel.{{Ref/Novel|Halo: Hunters in the Dark|Page=252}} Inside, the Prophet of Truth was giving a speech attempting to reassure his remaining followers, declaring that he was about the activate the Halo Array by forcing Johnson into activating the Array. Realizing that they had very little time left, John-117 and Thel 'Vadam hastily made their way to the elevator that would carry them to Truth's level, but the elevator's immense height meant that they would not be able to intervene in time.{{Ref/Reuse|cov}}
+{{Main|Cloaking}}
+In ''Halo 3'', the Active Camo is no longer contained inside a pyramid construct. Instead it appears as a large, glowing sphere with what appears to be containment devices around it, enclosing the powerup in ''[[Halo 3]]'' [[multiplayer]]; but unlike past Halo games, active camo is ''not'' found in campaign. In campaign, Active Camouflage is replaced by the [[Cloaking]] [[equipment]], which functions in the same way as active camouflage once did. Melee attacks, shooting, throwing grenades and using equipment will negate the effect of the power-up. Also, wearing the [[Armor customization (Halo 3)#Spartan Armor Permutations|Flaming Helmet]] is an obvious give-away to the opponent because the fire is still visible.
+By default, the pick-up lasts 30 seconds and doesn't dissipate with movement, unlike in Reach.
-Johnson attempted to goad the Chieftain that was holding him into killing him, but Truth, realizing this, stopped the Chieftain. With John-117 and the Arbiter too far away to stop Truth, Commander Keyes took her Pelican dropship and crashed it directly into the facility in an attempt to rescue Johnson, but she was killed by Truth himself when she hesitated to kill Johnson and herself to deny Truth a means to activate the rings. Johnson, struck by grief and shock, was easily made to activate the Array. However, Keyes' actions delayed Truth long enough for John-117 and the Arbiter to stop him. The Gravemind dispatched a swarm of [[Pod infector]]s and [[Flood combat form]]s, led by two [[Flood tank form]]s, to assist the UNSC-Sangheili force in preventing the Halos' activation. They were met by the Jiralhanae Chieftain and his Unggoy, Kig-Yar and Jiralhanae.{{Ref/Reuse|cov}}
+The quality of camouflage in custom games may be set to two different settings:<ref>[http://www.gametrailers.com/player/20131.html '''Game Trailers''': ''Custom Games Glitch Gameplay'']</ref>
+*'''Poor Camo''': The player has camouflage that might fool a [[Unggoy|Grunt]].
+**The player is still somewhat visible.
+*'''Good Camo''': The player has camouflage that will fool an attentive [[Sangheili|Elite]].
+**This makes the player almost invisible, but the light is distorted within the player's shape.
-The defending Covenant forces quickly collapsed under the combined assault from the humans, Sangheili, and the Flood. With all Covenant in the Citadel had been eliminated, John-117 and 'Vadam reached the final room where they found Johnson cradling the dead body of Commander Miranda Keyes. 'Vadam confronted the Prophet of Truth, who was already partially infected by the Flood. 'Vadam allowed the Prophet to live long enough to see John-117 deactivate the rings, and 'Vadam personally killed Truth. With the Halo threat eliminated, the Gravemind betrayed the humans and the Sangheili, sending a large group of Flood combat forms and carrier forms after John-117 and Thel 'Vadam. The two attempted to escape on Keyes' Pelican, now piloted by Johnson, but they were knocked off by one of Gravemind's tentacles. With Johnson's Pelican spiralling out of the control, he instructed the two to return to the elevator.{{Ref/Reuse|cov}}
+===''Halo: Reach''===
+The Active Camo in ''[[Halo: Reach]]'' has undergone many major changes. It is now available as an [[Armor abilities|Armor Ability]] to both Spartan and Elite players. As a secondary effect, when used, it acts as a Radar Jammer, scrambling the radar of the user and all enemies within 25 meters, making the user harder for enemies to detect on their motion trackers. This function can be both beneficial and detrimental to the player; on the one hand, it can make enemies easier to ambush, however, it also informs the enemy team that someone is using Camo nearby. This can backfire on the player by making the enemy team more perceptive to possible ambushes. The Active Camo also greatly reduces the volume of all sounds for its user, making it more difficult to notice a grenade being thrown or a nearby enemy firing a weapon.
-With the assistance of Aggressor Sentinels, the pair fought their way back to the elevator, which had been disabled. Without another choice, the two dropped down a small shaft. At the bottom, John-117 followed flickers of Cortana to a control panel, and, upon its activation, they found [[Installation 08]] departing from the Ark's [[Foundry (location)|Foundry]]. Realizing this was Cortana's "solution" for the Flood, John-117 decided he needed to activate the ring at the Ark's isolated location. 343 Guilty Spark agreed, The Monitor agreed that a tactical pulse would eliminate the Flood infestation on the Ark, and made his way to the ring to oversee the final preparations. However, this new Halo lacked an activation index. The only way they could get another Index was to rescue Cortana from ''High Charity'', since she still possessed the Index from the original Installation 04.{{Ref/Reuse|cov}}
+The strength or effectiveness of the Camo also varies depending on whether/how fast the user is moving. When standing still, the player is rendered almost completely invisible. Moving slowly or crouch-walking will slightly decrease the quality of cloaking, although the user is still hard to spot. When moving faster than crouch-walking speed, the Active Camo becomes much less effective, cloaking the user only partially (similar to the Poor Camo from Halo 3). The player's movement speed does not affect the rate at which the Armor Ability meter drains.
+The freedom for the player to control when they activate their camouflage makes it much more effective, as it allows for use in the most opportune situations, instead of restricting the player to activate it on pickup. However, the reduced hearing and radar jamming effects require the player to be more aware of his surroundings than usual,<ref>[http://halo.bungie.net/News/content.aspx?type=topnews&cid=26366 '''Bungie.net''': ''Halo: Reach Beta Survival Guide '']</ref> and must also take care not to move too fast.
-[[File:TruthDeath-large.jpg|thumb|left|300px|Arbiter killing the High Prophet of Truth.]]
+Enemies in campaign and Firefight will detect the user after a while. As such, it is far less effective than previous iterations.
-{{clear|left}}
+===''Halo: Combat Evolved Anniversary''===
+Active camouflage now makes the user extremely hard to spot due to the enhanced graphics. Distortion also covers more the exact shape of the user, unlike previous iterations.
-===Master Chief's Raid on ''High Charity''===
+===''Halo 4''===
-{{Main|Raid on High Charity}}
+The '''[[Type-3 active camouflage|Type-3 Refraction Dissonance Modifier/Camouflage]]''' bends light around a structure, hiding it via advanced pattern realignment. It is similar to the version in ''Halo: Reach'', however the jammer no longer makes false hostile contacts appear on the motion sensor, rather it makes neutral contacts appear and in a much tighter grouping than before, therefore not only preventing the user from using it to trick enemies, but possibly giving away their location. Despite this, it still is an effective tool for hiding outside of cover and ambushing enemies.
-While Johnson, 'Vadam, and 'Vadum rounded up the UNSC and Sangheili survivors from the battle, John-117 took a Banshee and [[Raid on High Charity|infiltrated]] the Flood-infested ''High Charity''. The Spartan fought through swarms of Flood and successfully recovered Cortana, who indeed still held the activation index from Installation 04. Under Cortana's guidance, John-117 sabotaged the city's reactors, causing a series of explosions that crippled the Gravemind. 'Vadam arrived shortly after, and the trio fled onboard a crashed Pelican.{{Ref/Level|Id=cortana|H3|Cortana (level)|Cortana}}
-{{clear|left}}
+===''Halo 5: Guardians''===
+Active camouflage is now a powerup that can be picked up in Arena or requisitioned in Warzone. While active the user is invisible to the motion sensors of enemies as long as they are not sprinting. Moving while crouched no longer deteriorates the quality of camouflage, though moving faster would. It now displays a meter on the HUD that shows the remaining duration of the power up, and shortly before it runs out, the player will be notified via a quiet beeping sound.
-===Finishing the fight===
+===''Halo Wars 2''===
-{{Main|Raid on Installation 08}}
+Shrouds are able to cloak themselves and other units. [[Let 'Volir]] is able to cloak units with leader abilities.
-{{Quote|multi=yes|q1=We are aboard, humans...and Elites. Will you not come with us, brother?|Rtas 'Vadum|q2=No. This is our fight. And I ''will'' see it finished.|Thel 'Vadam|Thel 'Vadam wishing to finish the fight alongside John-117.{{Ref/Reuse|halo}}}}
-With the index secured, Thel 'Vadam ordered Rtas 'Vadum to take the human and Sangheili survivors to leave the Ark, using the slipspace portal to Earth. 'Vadam accompanied John-117 and Cortnaa to the incomplete Halo. Sergeant Major Johnson piloted the UNSC ''Forward Unto Dawn'', which was left behind for their escape, to a safe location near the control room, then drove a Warthog to the control room. The Gravemind, meanwhile, had begun to rebuild itself on the new ring, and sent [[Flood dispersal pod]]s to stop the three interlopers. John-117, 'Vadam, and Johnson, with the assistance of local Sentinels, fought through the Flood and entered the Control Room. Inside, Spark explained that the new Halo would be ready to fire within days, to which the group, particularly Johnson, protested. When Guilty Spark informed the three that activating Halo now would destroy both the Ark and the installation, Johnson told him to "deal with it" and prepared to activate the ring.{{Ref/Reuse|halo}}
-Unwilling to let "his" ring be destroyed again, 343 Guilty Spark attacked the trio. He mortally wounded Johnson, took down the Master Chief's shields, and blew 'Vadam out of the room. Spark cornered John-117, but with the help of Johnson and his [[M6 Spartan Laser|Spartan Laser]], John-117 defeated Guilty Spark and initiated the firing sequence of the new Halo. The incomplete Halo began ripping itself apart under the charging sequence. Fighting past the Flood and the Sentinels that have turned on them, John-117 and 'Vadam took Johnson's Warthog and rushed towards the ''Dawn'' as the incomplete Halo powered up and started breaking apart. The two drove their way through hordes of battling Flood and Sentinels. The two made it onto the ''Dawn''{{'}}s hangar bay, from where 'Vadam ran to the bridge while John-117 inserted Cortana into a holotank in the hangar bay, so she could activate the ''Dawn''{{'}}s engines. The ''Dawn'' left the ring just as it fired.{{Ref/Level|Id=halo|H3|Halo (Halo 3 level)|Halo}} The firing sequence shook the ring into pieces and heavily damaged Installation 00. The Slipspace portal collapsed as the ''Dawn'' entered it, and while the forward half with 'Vadam made it to Earth, the rear half fell out of Slipspace at an unknown location, leaving John-117 and Cortana stranded in space.{{Ref/Reuse|epi}}
+===''Halo Infinite''===
+Active Camouflage is activated via an animation similarly to ''Halo 5: Guardians'', although it can now be used at will. If the player is killed before they can use it, or while in the process of activating it, they will drop the powerup which can now be picked up by another player. Active camouflage in ''Halo Infinite'' behaves like a hybrid of the active camouflage seen in the original trilogy, and the active camo seen in all the games since ''Halo: Reach''. If the player is simply moving and strafing, the camouflage remains consistent, but if they sprint or fire their weapon, the camo fades out. {{Ref/YouTube|Id=mpoverview|n-O7OuliQRY|HALO|Halo Infinite <nowiki>|</nowiki> Multiplayer Overview|D=4|M=7|Y=2021}}
-==Aftermath==
+==Non-canon and dubious canon appearances==
-{{Quote|For us, the storm has passed. The war is over. But let us never forget those who journeyed into the howling dark, and did not return. For their decision required courage beyond measure; sacrifice, and unshakable conviction that their fight, our fight, was elsewhere. As we start to rebuild, this hillside will remain barren. A memorial to heroes fallen. They ennobled all of us, and they shall not be forgotten.|[[Fleet Admiral]] [[Terrence Hood]] in the memorial ceremony{{Ref/Reuse|epi}}}}
+===Silver Timeline===
+{{Main|Silver Timeline}}
-===Installation 00 and the Flood===
+Active camouflage is used by Covenant Sangheili.{{Ref/Film|[[Halo: The Television Series Season One]], [[Contact]]}}
-The firing of the Halo ring caused unprecedented damage to the Ark while sterilizing the installation of the Flood forces around and on it, including the Gravemind commanding the massing Flood amid the battle. Over two years later on [[2555|March 20, 2555]], during [[Operation: FAR STORM]], [[Luther Mann]] and [[N'tho 'Sraom]] arrived at the Citadel to stop the Halos from firing. Scattered around the basin were the remains of human and Covenant vehicles left over from the battle, including the empty husks of the two [[Type-47B Scarab|Scarabs]].<ref>'''[[Halo: Hunters in the Dark]]''', ''page 252''</ref>
+==Trivia==
+*Changing the graphics card settings on [[Halo: Combat Evolved (PC port)|''Halo: Combat Evolved'' for PC]] (lowering the quality and effects) makes active camouflage users appear as an easily-seen gray, opaque silhouette.
-===''Forward Unto Dawn''===
+*In ''Halo: Combat Evolved'', the flood can still see you if you use active camo.
-The Portal between [[Installation 00]] and Earth collapsed while {{UNSCShip|Forward Unto Dawn}} was still inside it. As a result, the ship was cut in half; the front arriving at Earth and the back half being lost in space. The' Vadam, sitting on the bridge at the time, was part of the front half but, without any engines, soon crashed into the ocean. [[John-117]] and Cortana were in the rear half, and though they survived the Portal’s collapse, they were stranded in space and declared MIA. John-117 went into cryo-sleep while Cortana activated a [[distress beacon]] indicating their status.{{Ref/Reuse|epi}} After drifting in an unknown region of space for over 4 years, the rear half of the ''Dawn'' was caught in the [[gravity well]] of a Forerunner [[shield world]] known as [[Requiem]].<ref name="H4">'''[[Halo 4]]''', campaign level ''[[Requiem (level)|Requiem]]''</ref>
+*Oddly enough, a group of Major and Minor Grunts in the ''Halo 2'' level [[Delta Halo]] used Active Camouflage as they fought alongside a group of [[Stealth Sangheili|Stealth Elites]]. Spec Ops Grunts are also seen using this in the level [[The Arbiter]] just before entering the gas mine. This suggests that at least some Grunts have this equipment.
+*When used in association with an [[Overshield]], the Active Camo becomes completely useless due to the charges of the overshield washing over the player's body (except in ''Halo: Combat Evolved''). In ''[[Halo 3]]'', the same effect occurs when Active Camouflage and Overshields are both working.
-===Legacy===
+*The active camouflage has no effect on the flames on the [[Bungie Armor]], allowing enemies to more easily locate the user of the chest piece.
-{{Quote|no=three|1=Jerome-092|q1=Isabel, where did all this wreckage come from?|2=Isabel|q2=There was a battle here near the end of the war. The Master Chief saved us all.|3=Jerome-092|q3=It's good to know John's still out there.|4=[[Isabel]] and [[Jerome-092]] while fighting the [[Banished]] on Installation 00<ref name= "HW2">'''[[Halo Wars 2]]''', campaign level ''[[A New Enemy]]''</ref>}}
+*With the [[Halo 2 skulls#Envy|Envy]] skull on in ''[[Halo 2]]'', the [[John-117|Master Chief]]'s flashlight will be replaced with active camouflage. This can also be combined with a glitch which allows you to reload from a checkpoint, after saving and quitting, and turning off your console, with infinite active camouflage. This makes the Campaign on ''Halo 2'' considerably easier, even on Legendary difficulty.
-A [[Voi Memorial|monument]] was made near the town of Voi, not far from the portal structure. It read, "''In memory of those fallen in the defense of Earth and her Colonies. [[2553|March 3, 2553]].''" On it were photos of UNSC personnel who went through the portal but did not return; John-117 was honored with an etching of the number "117". With the exception of Thel 'Vadam, the Sangheili were not present at the dedication service, instead remaining aboard ''Shadow of Intent''. After the ceremony, Lord Hood, despite being unable to forgive the Sangheili for what they did to humanity at the beginning of the war, shook 'Vadam's hand and thanked him for standing beside the Master Chief at the Ark. The Arbiter then departed to ''Shadow of Intent'', and joined [[Rtas 'Vadum]] on the bridge, both agreeing to return to [[Sanghelios]] to ensure its safety. Thel 'Vadam was given command of the carrier and all Sangheili onboard departed for their homeworld.{{Ref/Reuse|epi}}
+*In any Halo game, when you have active camouflage on and you get in a vehicle, the camouflage stays on and appears as if there was a ghost driving it or that it was driving itself (works particularly well with the Warthog LAAG). It works with any vehicle which exposes the occupants to view.
+*In ''Halo 2'' for Windows Vista, when playing on Threshold, your comrades are not picked up by radar when camouflaged.
-In [[2555#March|March 2555]], the Ark's monitor, [[000 Tragic Solitude]], sought revenge against humanity for damaging the Ark years prior. To do so, the ancilla placed the remaining Halos on a brief countdown to activation, prompting a joint UNSC-[[Swords of Sanghelios]] [[Operation: FAR STORM|mission]] to the installation to stop the rings from firing. After Solitude's plan was thwarted, the UNSC established research facilities on the Ark.<ref name="HIND">'''Halo: Hunters in the Dark''', ''page ???''</ref> The UNSC's research team was able to repair the Ark from the damage done in the battle by directing the Ark's [[Retriever Sentinel]]s to mine lifeless systems for the needed materials for repairs.<ref>'''[[Halo Wars 2]]''' - ''[[Phoenix Logs]]'' - ''The Healing of Old Wounds''</ref>
+*The lights on a [[Gravity hammer (fiction)|gravity hammer]] can be seen clearly when camouflaged. It is not recommended to have a Gravity Hammer either as your primary weapon or secondary weapon when using active camo, as the lights make you an easy target for experienced snipers.
+*In ''Halo 3'', go in Monitor mode and find an Active Camouflage. Go inside it. After about 10–20 seconds, the Active Camo will stop making its shimmering noise and you'll hear a brief whispering sound (like a sigh or breath), and then it will continue its shimmering noise.
-In [[2558#September|September 2558]], the [[Jiralhanae Chieftain]] [[Hekabe]] attempted to unleash the [[Sharquoi]] on the planet [[Carrow]], having retrieved the Sharquoi control device, the ''[[vertex]]'', from the Ark during the Battle of Installation 00. Hekabe's plan was narrowly foiled by [[Gray Team]], [[Rojka 'Kasaan]] and elements of the [[Surakan Militia Volunteers]].{{Ref/Reuse|envoy}}
+*Strangely, the active camo module in the ''Halo: Reach'' [[Halo: Reach Multiplayer Beta|Beta]] had "UNSC" printed on it, even when being used by Elites, though this is likely because it was a placeholder file.
+*The Overshield as well as Active camouflage were requested by Hardy LeBel as a feature for Halo: CE's multiplayer. The team working on the campaign saw that they were and added them too.
-The [[Banished]] arrived on the fully repaired Ark in [[2558#November|November 2558]], killing UNSC personnel across the installation. In [[2559#March|March 2559]], the crew of the newly arrived {{UNSCShip|Spirit of Fire}} [[Second Ark Conflict|engaged]] the Banished with help from [[Isabel]], the logistics AI of [[Henry Lamb Research Facility|one of]] the UNSC research facilities.{{Ref/Reuse|HW2}} Approximately six months after the initial hostilities with ''Spirit of Fire'', a force of Banished warriors lead by [[Voridus]] used a [[Banished Scarab|Scarab]] to blast a hole in the [[containment shield]] around the ruins of [[High Charity]], as they sought to scavenge materials to aid their ongoing struggle against the UNSC. However, the Banished ignored warnings about the [[Flood]] as they believed them to simply be another Covenant lie and were unaware that some of the Flood still survived in the ruined city. This inadvertently caused a Flood outbreak onto the installation, leading to a desperate struggle between the Banished and the parasite. After some time, the Banished managed to destroy a [[Proto-Gravemind]] that was moments away from becoming a Gravemind and the Ark's Sentinels and the Banished managed to once again contain the Flood.<ref>'''[[Halo Wars 2: Awakening the Nightmare]]'''</ref>
-==Participants==
-{{col-begin}}
-{{col-2}}
-===UNSC===
-===Naval assets===
-====Starships====
-{| class="wikitable sortable " style="width: 75%;" cellspacing="1" cellpadding="1" border="0"
-|-
-! Tactical grouping
-! Class
-! Name
-! Status<!--This refers to their status after the battle, not their overall status-->
-|-
-| rowspan="2" | [[Seventh Fleet]]
-| rowspan="2" | {{Class|Charon|light frigate}}
-|{{UNSCShip|Forward Unto Dawn}}
-|Destroyed, split in half
-|-
-|{{UNSCShip|Aegis Fate}}{{Ref/NoteReuse|AegisFate}}
-|Unknown
-|}
-====Military personnel====
-{| class="wikitable sortable " style="width: 75%;" cellspacing="1" cellpadding="1" border="0"
-|-
-! Branch
-! Rank
-! Name
-! Status<!--This refers to their status after the battle, not their overall status-->
-|-
-| rowspan="3" |[[UNSC Navy]]
-|[[Master Chief Petty Officer]]
-|[[John-117]]{{Ref/Reuse|theark}}
-|Survived, listed as MIA
-|-
-|[[Commander]]
-|[[Miranda Keyes]]{{Ref/Reuse|theark}}
-|KIA
-|-
-|[[Lieutenant]]
-|[[Hocus]]{{Ref/Reuse|theark}}
-|Unknown
-|-
-| rowspan="3" |[[UNSC Marine Corps]]
-|[[Sergeant Major]]
-|[[Avery Johnson]]{{Ref/Reuse|theark}}
-|KIA
-|-
-|[[Private First Class]]
-|[[Chips Dubbo]]{{Ref/Reuse|theark}}
-|Survived
-|-
-|[[Gunnery Sergeant]]
-|[[Marcus Stacker]]{{Ref/Reuse|theark}}
-|Survived
-|}
-===Units===
-====Ground forces====
-*[[UNSC Navy]]
-*[[UNSC Marine Corps]]
-**[[S4/BLCE/1/7]]
-**[[S4/BRT/1/7]]
-***[[Alpha Company, S4/BRT/1/7|Alpha Company]]
-***[[Charlie Company, S4/BRT/1/7|Charlie Company]]
-**[[Orbital Drop Shock Trooper]]s
-***[[105th Shock Troops Division|105th ODST Division]]
-****[[7th Shock Troops Battalion]]{{Ref/Reuse|theark}}
-***[[11th Marine Force Reconnaissance/ODST|11th MFR/ODST]]{{Ref/Reuse|Blind Faith}}
-====Naval forces====
-*[[UNSC Home Fleet|Home Fleet]]
-**[[Seventh Fleet]]
-***[[Battle Group Victory]]
-===Artificial intelligence===
-{{Main|Artificial intelligence}}
-{| class="wikitable sortable " style="width: 75%;" cellspacing="1" cellpadding="1" border="0"
-|-
-! Name
-! Status<!--This refers to their status after the battle, not their overall status-->
-|-
-|[[Cortana]]
-|Survived, listed as MIA
-|}
-===Covenant separatists===
-===Naval assets===
-====Starships====
-{| class="wikitable sortable " style="width: 75%;" cellspacing="1" cellpadding="1" border="0"
-|-
-! Tactical grouping
-! Class
-! Name
-! Status<!--This refers to their status after the battle, not their overall status-->
-|-
-| rowspan="2" |[[Fleet of Retribution]]
-| {{Class|CAS|assault carrier}}
-|''[[Shadow of Intent]]''{{Ref/Reuse|theark}}
-|Survived
-|-
-| {{Class|CCS|battlecruiser}}
-|''[[Pious Inquisitor]]''<ref name="EVG">'''[[Halo: The Essential Visual Guide]]''', ''page 124''</ref>
-|Survived
-|}
-====Military personnel====
-{| class="wikitable sortable " style="width: 75%;" cellspacing="1" cellpadding="1" border="0"
-|-
-! Branch
-! Rank
-! Name
-! Status<!--This refers to their status after the battle, not their overall status-->
-|-
-| rowspan="4" |Unknown
-|[[Fleetmaster]]
-|[[Rtas 'Vadum]]{{Ref/Reuse|theark}}
-|Survived
-|-
-|[[Arbiter]]
-|[[Thel 'Vadam]]{{Ref/Reuse|theark}}
-|Survived
-|-
-| rowspan="2" |[[Special Operations Sangheili|Special Operations]]
-|[[Usze 'Taham]]{{Ref/Site|Id=Coop|D=14|M=11|Y=2014|URL=http://halo.bungie.net/News/content.aspx?type=topnews&link=thesoundofsack|Site=bungie.net|Page=The Tru7h About Co-Op in Halo 3}}
-|Survived
-|-
-|[[N'tho 'Sraom]]{{Ref/Reuse|Coop}}
-|Survived
-|}
-===Units===
-====Ground forces====
-*[[Special Warfare Group|Fleet of Retribution Special Warfare Group]]
-====Naval forces====
-*[[Fleet of Retribution]]
-**One [[battle group]]{{Ref/NoteReuse|composition}}
-{{col-2}}
-===Covenant===
-===Naval assets===
-====Starships====
-{| class="wikitable sortable " style="width: 75%;" cellspacing="1" cellpadding="1" border="0"
-|-
-! Tactical grouping
-! Class
-! Name
-! Status<!--This refers to their status after the battle, not their overall status-->
-|-
-| rowspan="3" |[[Truth's fleet]]
-| [[Forerunner]] [[keyship]]
-|''[[Anodyne Spirit]]''
-|Survived, assumed destroyed
-|-
-| {{Class|ORS|heavy cruiser}}
-|''[[Foebane|Gathering of Praise]]''{{Ref/Reuse|loot5}}{{Ref/Reuse|envoy}}
-|Escaped
-|-
-| [[Covenant frigate]]
-|''[[Twilight Compunction]]''{{Ref/Reuse|loot5}}
-|Destroyed
-|}
-====Military personnel====
-{| class="wikitable sortable " style="width: 75%;" cellspacing="1" cellpadding="1" border="0"
-|-
-! Branch
-! Rank
-! Name
-! Status<!--This refers to their status after the battle, not their overall status-->
-|-
-| rowspan="2" |Unknown
-|[[Shipmaster]]
-|[[Hekabe]]
-|Escaped
-|-
-|[[Jiralhanae Chieftain|Chieftain]]
-|[[Cethegus]]
-|KIA
-|}
-====Non-combatants====
-{| class="wikitable sortable " style="width: 75%;" cellspacing="1" cellpadding="1" border="0"
-|-
-! Branch
-! Rank
-! Name
-! Status<!--This refers to their status after the battle, not their overall status-->
-|-
-|[[High Council]]
-|[[Hierarchs|Hierach]]
-|[[Prophet of Truth]]
-|KIA
-|}
-===Units===
-====Naval forces====
-*[[Truth's fleet]]†
-**[[Hekabe's clan]]
-{{col-end}}
 ==Gallery==
 <gallery>
-File:H3 SpaceBattle Concept.jpg|Concept art of the [[space warfare|space battle]] above Installation 00.
+File:HaloCE-ActiveCamouflage.jpg|A Stealth Elite using active camouflage in ''Halo: Combat Evolved''.
-File:H3 Ark SentinelsVsCovenant.png
+File:HCE_Campaign_ActiveCamo_Pickup.jpg|Active Camo in ''Halo: Combat Evolved'' campaign.
-File:H3_TanksVsScarab.png
+File:HCE_MP_ActiveCamo_Pickup.png|Active Camo in ''Halo: Combat Evolved'' multiplayer.
-File:H3 CethegusCharging.png
+File:HCEPC ActiveCamoflage.png|Active camouflage on ''[[Halo: Combat Evolved (PC port)|''Halo: Combat Evolved'' for PC]]''.
-File:Cool odsts.jpg
+File:H2 Active Camouflage.png|The Active Camouflage in ''Halo 2''.
-File:Anti-Anti-Air.jpg
+File:H3_ActiveCamo.jpg|The Active Camouflage in ''Halo 3''.
-File:H3 Brute Pack.png
+File:H3_Bungie_Camo.jpg|Bungie Armor and Active Camouflage in ''Halo 3''.
-File:H3 BarrierTowerBattle.png
+File:HReach Active Camouflage.jpg|The Active Camouflage powerup in ''Halo: Reach''.
-File:H3 TheCovenant CitadelDogfight.png
+File:HR SpecOpsElites.jpg|Multiple SpecOps Sangheili using active camouflage, with one also possessing [[Overshield]].
-File:H3 Scorpion firing at a Scarab.jpg
+File:H4 ActiveCamo_Spartan.jpg|Active Camouflage in use in ''[[Halo 4]]''.
-File:H3-JohnFlamethrower.jpg
+File:H2A-ActiveCamo.png|Active camouflage in ''[[Halo 2: Anniversary]]'' multiplayer.
-File:3Way2-large.jpg
+File:H2A-CloakedSpartan.png|A Spartan using active camouflage in ''Halo 2: Anniversary'' multiplayer.
+File:REQ Card - Active Camo I.png|REQ card for Active Camouflage in [[Halo 5: Guardians]].
+File:Activecamo2.png|REQ Card for Active Camouflage II.
+File:Activecamo3.png|REQ Card for Active Camouflage III.
+File:H5G-Camo.png|A Spartan-IV using active camouflage in ''Halo 5: Guardians''.
+File:HINF ActiveCamouflage Icon.png|HUD icon for the active camouflage in ''[[Halo Infinite]]''.
+File:HINF-CamoOrko.png|[[Okro 'Vagaduun]] using active camo in ''Halo Infinite''.
+File:HINF-Deadlockcamo.jpg|A Spartan-IV carrying an active camo module in ''Halo Infinite''.
+File:HINF-Camo1.png|A Spartan-IV activating an active camo module in ''Halo Infinite''.
+File:HINF-CamodSpartan.png|A Spartan-IV with active camo in ''Halo Infinite''.
+File:HTV-Contact-ActiveCamomodule.jpg|A Sangheili with an active camo module in ''[[Halo: The Television Series]]''.
+File:HTV-Contact-ActiveCamo.jpg|The same Sangheili activating the active camo.
 </gallery>
 ==List of appearances==
+*''[[Halo: The Fall of Reach]]'' {{1st}}
+*''[[Halo: Combat Evolved]]''
+*''[[Halo: The Flood]]''
 *''[[Halo: First Strike]]''
-**''[[Petra]]'' {{Mo}}
+*''[[Halo 2]]''
-*''[[Halo 3]]'' {{1st}}
+*''[[Halo: Ghosts of Onyx]]''
+*''[[Halo 3]]''
+*''[[Halo Wars]]''
+*''[[Halo 3: ODST]]''
 *''[[Halo Legends]]''
-**''[[Origins]]''
+**''[[The Package (animated short)|The Package]]''
-*''[[Halo: Evolutions - Essential Tales of the Halo Universe]]''
+*''[[Halo Evolutions - Essential Tales of the Halo Universe]]''
-**''[[From the Office of Dr. William Arthur Iqbal]]'' {{Mo}}
+**''[[Headhunters (short story)|Headhunters]]''
-*''[[Halo: Broken Circle]]'' {{Im}}
+**''[[The Impossible Life and the Possible Death of Preston J. Cole]]''
-*''[[Halo: Hunters in the Dark]]'' {{Mo}}
+*''[[Halo: Reach]]''
-*''[[Halo Mythos]]'' {{Mo}}
+*''[[Halo: Combat Evolved Anniversary]]''
-*''[[Halo: Tales from Slipspace]]''
+*''[[Halo 4: Forward Unto Dawn]]''
-**''[[Dominion Splinter]]'' {{C|Flashback only}}
+*''[[Halo 4]]''
-*''[[Halo Wars 2]]'' {{Mo}}
+**''[[Spartan Ops]]''
-*''[[Halo: Envoy]]'' {{Mo}}
+*''[[Halo: Spartan Assault]]''
-*''[[Halo: Legacy of Onyx]]'' {{Im}}
+*''[[Halo 2: Anniversary]]''
-*''[[Halo: Bad Blood]]'' {{Mo}}
+**''[[Terminal (Halo 2: Anniversary)|Terminals]]''
-*''[[Halo: Shadows of Reach]]'' {{Im}}
+*''[[Halo: New Blood]]'' {{Mo}}
-**''[[Sacrifice]]'' {{Mo}}
+*''[[Halo: Last Light]]''
+*''[[Halo 5: Guardians]]''
-==Notes==
+*''[[Halo: Fractures]]''
-{{Ref/Notes}}
+**''[[Oasis]]''
+*''[[Halo: Smoke and Shadow]]''
+*''[[Halo: Tales from Slipspace]]
+**''[[Hunting Party]]''
+*''[[Halo Wars 2]]''
+*''[[Halo: Envoy]]''
+*''[[Halo: Collateral Damage]]''
+*''[[Halo: Official Spartan Field Manual]]'' {{Mo}}
+*''[[Halo: Shadows of Reach]]''
+*''[[Halo: Divine Wind]]''
+*''[[Halo Infinite]]''
+*''[[Halo: The Television Series]]''
+**''[[Contact]]''
+*''[[Halo: The Rubicon Protocol]]''
+*''[[Halo: Outcasts]]''
 ==Sources==
 {{Ref/Sources}}
-{{Engagements in the Battle of Installation 00}}
+{{Navbox/Pickups/Gameplay}}
-{{Human-Covenant War}}
-{{DEFAULTSORT:Installation 00}}
+[[Category:Camouflage]]
-[[Category:UNSC Victories]]
+[[Category:Armor abilities]]
-[[Category:Battle of Installation 00| ]]
+[[Category:Power ups]]
-[[Category:Engagements in the Battle of Installation 00| ]]