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{{Status|Canon}}
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[[File:HINF MjolnirShieldFlare.png|thumb|350px|The PANSPEC energy shielding on [[John-117]]'s [[MJOLNIR Powered Assault Armor (GEN3)|MJOLRNIR [GEN3]]] after taking several plasma bolts.]]
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[[Image:Halo3 Snowbound-3rdperson-01.jpg|right|thumb|300px|The [[MJOLNIR Mark VI]] armor's shields glow after taking damage.]]
'''Energy shielding''' is an advanced defensive technology making use of a field of energized particles that wraps around a surface, which deflects objects that attempt to impact the surface. Most energy shields are able to deflect various forms of damage, from material projectiles to [[directed-energy weapon|directed energy streams]]. Several [[United Nations Space Command|UNSC]], [[Covenant]] and [[Forerunner]] [[:Category:Vehicles|vehicles]], [[:Category:Equipment|devices]], and [[armor]] systems make use of energy shielding to protect users from harm.
Several [[UNSC]], [[Covenant]] and [[Forerunner]] vehicles, devices and armor systems make use of '''Energy shielding''' to protect users from harm. Energy shields consist of a field of energized particles that wraps around a surface, which deflects objects that attempt to impact the surface.


==Human energy shielding==
==Human energy shielding==
[[Image:screen007.jpg|right|thumb|200px|Testing the shields on [[MJOLNIR Mark V]] Armor adorned by the [[John-117|Master Chief]].]]
[[File:HCE ShieldTest.jpg|thumb|200px|Testing the shields on [[John-117]]'s [[MJOLNIR Powered Assault Armor|Mark V MJOLNIR armor]].]]
[[Humans]] started using energy shield technology with the production of the MJOLNIR Mark V powered assault armor, and has since been incorporated into all later models. This breakthrough was achieved through reverse-engineering the technology used in [[Kig-yar point defense gauntlet]]s. Unlike the Covenant [[Elite Personal Energy Shield]], when the human shield takes damage, it glows gold instead of blue.  
[[Human]]s have used energy shield technology for a relatively brief amount of time. The earliest known example is the "[[Z-4190 bubble shield|bubble shield]]", a protective device developed and deployed by the [[Office of Naval Intelligence]]'s [[Beta-5 Division]],<ref name="Manual">'''Halo: Reach''' manual</ref> which has been in service since at least [[2544]].<ref name="Package">'''Halo: Legends:''' ''The Package''</ref> The Beta-5 Division also utilizes the "[[drop shield]]", a similar device which, despite being less resilient than the bubble shield, is capable of regenerating organic tissue through unknown means.{{Ref/Reuse|Manual}}


Although the shields of MJOLNIR armor are very resilient, they can be stripped in seconds if the wearer isn't careful. Plasma weapons are especially effective against MJOLNIR and Elite Personal Energy Shield shields. [[Plasma Rifles]], Plasma Pistols, and [[Plasma Cannons]] are all very good at depleting the MJOLNIR's shields.
Near the end of the [[Human-Covenant War]], ONI scientists successfully reverse-engineered the technology used in [[Kig-Yar point defense gauntlet]]s, leading to the technology's incorporation into the [[MJOLNIR Powered Assault Armor/Mark V|Mark V MJOLNIR Powered Assault Armor]] and all later iterations of the series. Energy shielding technology had previously been tested with the [[MJOLNIR Powered Assault Armor/Mark IV(G)|Grenadier variant]] of the [[MJOLNIR Powered Assault Armor/Mark IV]],<ref>'''Halo: Reach''', ''The Armory''</ref> though these tests were not successful.<ref>'''[[Dr. Halsey's personal journal]]'''</ref> The UNSC also reverse-engineered an [[armor lock|"armor lock" plug-in module]] from functionally identical Covenant technology. In conjunction with the MJOLNIR armor's lock-down system, this device emits an impervious shield barrier that can deflect all small arms fire and can shed attached plasma grenades. The [[SPARTAN-III program|SPARTAN-III]] [[Headhunters]] wear an advanced version of the standard-issue [[Semi-Powered Infiltration armor]] which features energy shields that are similar to those of MJOLNIR, though the shields share power with the suit's [[active camouflage]] module.<ref>'''Halo: Evolutions - Essential Tales of the Halo Universe''', ''Headhunters''</ref> With each new generation of armor, the shields were improved, an [[Unidentified master gunnery sergeant]] commenting that the [[MJOLNIR Powered Assault Armor/Mark VI|Mark VI's]] shields were "much better than the Covenant tech we used for the Mark V."{{Ref/Level|H2|[[The Armory]]}}


One of the [[UNSC]]'s most recent breakthroughs in energy shield development came with the creation of the [[YSS-1000]] starfighter, which is the first human spacecraft known to use energy shields.
The UNSC has also developed [[energy barrier]]s which are used to separate pressurized areas, such as [[hangar bay]]s, from the vacuum of space. One of the UNSC's most recent breakthroughs in energy shield development came with the creation of the [[FSS-1000 Sabre]] orbital fighter, which is the first human spacecraft known to use energy shields. The post-war [[Mantis]] is another UNSC vehicle that utilizes energy shields. The post-war successor to the Longsword and Sabres, the [[F-41 Broadsword]], is equipped with energy shields, though not powerful enough to travel through Slipspace.<ref>[http://halo.xbox.com/en-US/Universe/detail/halo-4-mantis-trailer/5c5bc6fb-7cb0-4552-be8e-d6f54ed5c417 '''Halo Waypoint:''' ''Mantis Trailer'']</ref> Some warships also received shields post-war, with at least the {{UNSCShip|Infinity}}, its embarked [[Strident-class heavy frigate|frigates]], and the {{Class|Autumn|heavy cruiser}} possessing energy shielding.<ref>[[:File:H4FrigateShields.jpeg|Image showing frigate shields above hull]]</ref>


During the [[Fall of Reach]], ONI utilized a prototype [[Drop Shield|"drop shield"]] which had the protective abilities of the bubble shield and the healing abilities of a [[Regenerator|regenerator]].<ref>[http://www.youtube.com/watch?v=gAjCpqxA7vI '''Halo Waypoint''' Lars Bakken Interview]</ref> Collapsing under continuous fire, the drop shield proved to be not as indestructible as the bubble shield, and not as fast a healer as the regenerator. The shield itself greatly resembles the bubble shield, even sporting its counterpart's comprising geometric shapes, but is instead blue in color.<ref>[http://www.youtube.com/watch?v=NAxsrpRERi8 '''Halo: Reach''' Firefight gameplay]</ref>
==Covenant energy shielding==
[[File:H2 Sangheili Shielding.jpg|thumb|200px|A Sangheili's energy shield flaring.]]
The Covenant make extensive use of energy shielding technology. Nearly all Covenant starships larger than a [[dropship]] use energy shields and several ground-based structures use shields as well. Many Covenant warriors are equipped with energy shields.


==Covenant energy shielding==
===Personal shielding===
[[Image:Shielding.jpg|thumb|right|200px|A Covenant [[Elite|Elite's]] energy shielding.]]
Most [[Sangheili]], many [[Jiralhanae]], and some high-ranking [[Unggoy]] and [[Yanme'e]] are equipped with [[Sangheili personal energy shield|energy shields that are integrated into the wearer's armor]], or, in the latter case, carapace. [[Kig-Yar]] warriors use [[Kig-Yar point defense gauntlet|energy shield gauntlets]] that protect them from most oncoming fire but leaves them vulnerable to flanking attacks and grenades. The Covenant often use [[Huragok]] to provide energy shielding to troops on the battlefield. The Covenant also utilize [[overshield]]s, which provide additional layers of energy shielding to the wearer, and [[Regenerator|energy shield regenerators]]. Sangheili and Jiralhanae warriors sometimes use armor lock systems, from which the UNSC technology was reverse-engineered; Jiralhanae are able to use this technology even without [[Jiralhanae power armor|power armor]].
The Covenant make extensive use of energy shielding technology. Nearly all Covenant starships larger than a [[Corvette]] use energy shields, and several ground-based structures, such as [[Citadel (Covenant)|Covenant bases]] and [[Covenant Spire|Spires]], use shields as well. Species such as [[Sangheili]], [[Kig-yar]], [[Jiralhanae]], [[Huragok]] and high-ranking [[Yanme'e]] make use of personal energy shields of various types on the battlefield.


Also, the Covenant have discovered how to run [[Active Camo]] and Shielding at the same time. Even [[Tartarus]] and the [[Prophet of Regret]] were equipped with personal shields. Regret's shield, presumably projected by his [[Gravity Throne]], was very similar to the [[Bubble Shield]]. It deflected all forms of projectile, plasma, and explosive weaponry and never depleted. It was also similar in that one could simply walk through the shield. It was this that allowed the Master Chief to kill Regret. Tartarus' shield is much different and seems to have to be actively turned on. His shield would deflect almost all attacks from the elites, even energy swords, and the only weapon really able to overload it was a beam rifle. It is implied that other Brutes do not have this type of shielding since Cortana says when first fighting brutes on the level [[Gravemind (Level)|Gravemind]]: "They don't have ''shield generators'', but take them out before... it's berserking!".
Though the [[Hierarchs]] are not meant to encounter combat, their [[anti-gravity chair]]s emit powerful energy shields. They are able to deflect all forms of projectile, plasma, and explosive weaponry and seemingly never become depleted. However, one can simply walk through the shield. The shield used by [[Tartarus]], the [[Chieftain of the Jiralhanae]], was much different and seems to have to be actively turned on. His shield could deflect nearly all attacks save for those of a captured [[Type-50 particle beam rifle|beam rifle]]. A similar, though much less potent, technology is often used by [[Jiralhanae Chieftain|Jiralhanae chieftains]]; this "[[invincibility]]" device lasts only a matter of seconds, though it renders the user impervious to small arms fire. The device can also be used by personnel who do not otherwise possess energy shielding, such as UNSC [[Orbital Drop Shock Trooper]]s.<ref>'''Halo 3: ODST'''</ref>


The only Covenant vehicles to have shielding are the Locust and after an upgrade the Wraith and Ghost. It is odd that the Covenant do not have energy shields on any of their ground and aerial vehicles in the other Halo games (''Halo: Combat Evolved'', ''Halo 2'', and ''Halo 3''). Since they are able to make personal energy shields they should be able to have shields protecting their Wraiths, Banshees and Ghosts. It is likely that Bungie did not add shields to these vehicles in order to make them balanced. A shielded Wraith, for example, would be a significant challenge to the player.
===Spacecraft shielding===
Nearly all Covenant vessels are protected by highly resistant energy shields. These shields can withstand an impressive amount of firepower and can recharge very quickly. Covenant vessels' shields can absorb almost all missile fire, including hundreds of [[Archer missile]]s and even a low-yield {{Class|Shiva|nuclear missile}}, although Shiva nukes will usually deplete their shields, making them vulnerable to smaller weapons. The only UNSC weapons capable of penetrating a Covenant starship's shield are the [[Magnetic Accelerator Cannon]]s. Even then, ship-based MACs take multiple rounds to drop the shields; only high powered starship or a "Super MAC" round from an [[orbital defense platform]] can penetrate a Covenant ship's shields in one hit.


===Starship shielding===
Covenant starship shielding does have a notable flaw, however: Whenever a starship launches a [[plasma torpedo]] or [[pulse laser turret|pulse laser]], a small section of the energy shield must drop to allow the weapon to fire. Otherwise, the energy released would detonate on the inside of the shields, damaging the ship.
Nearly all Covenant vessels are protected by a highly resistant energy shield that can recharge over time. Covenant starship shields are light-gray/silver in color. The shields can take a vast amount of punishment, and can recharge very quickly. The only known flaw of starship shields is that when the vessel fires its [[Plasma]] weapons, the ship needs to drop a section of its shields for a fraction of a second. Otherwise, the [[Plasma Torpedo]] would detonate on the inside of the shields, damaging the ship itself. This weakness was demonstrated when a group of Spartans destroyed a Covenant ship in ''Halo: Fall of Reach'', by going inside of the ship and planting an explosive. Additionally, when a Covenant ship unloads troops and supplies, it must lower its shields to let dropships out.


Shields can absorb almost all missile fire, including hundreds of [[Archer Missiles]] and even a [[Shiva]] nuclear missile (although [[Shiva]] nukes will usually deplete their shields, making them vulnerable to smaller weapons). The only [[UNSC]] weapons capable of penetrating a Covenant Starship's Shield are the [[MAC gun]]s. Even then, ship-based MACs take multiple rounds to drop the shields; only a Super-MAC round from an [[Orbital Defense Platform]] can penetrate Covenant shields in one hit.
While projectile weaponry is generally ineffective against Covenant starship shielding, [[directed energy weapon]]ry can disable shields with relative ease, in much the same manner as Sangheili energy shields. Another way to disable the shipboard energy shields is through the use of a large-scale electromagnetic pulse.<ref>'''[[Halo: The Fall of Reach]]''', page 153</ref>


Plasma and other energy weapons, on the other hand, can relatively easily disable the shields, in much the same manner as [[Elite Personal Energy Shields]]. It must be noted that the size and class of a vessel determines the strength of its shields. During the [[Battle of Chi Ceti]], [[John-117]], [[Kelly-087]] and [[Samuel-034]] detonated several [[ANVIL-II Air-to-Surface Missile|ANVIL-II warheads]] inside the [[Covenant light cruiser]] [[Unrelenting]], and the flames from the blast were contained around and inside the ship by the energy shields.<ref>''"The shield shimmered and rippled silver - holding the destructive force inside."'' -- '''[[Halo: The Fall of Reach]]''', page 130</ref> This caused the metal hull of the light cruiser to melt away, until the shields gave way, causing a huge explosion.
The Covenant's [[Morsam-pattern Seraph|Type-31 "Seraph" fighters]] are typically equipped with energy shields, though this does not seem to always be the case.{{Ref/Reuse|Package}} {{Pattern|R'shwupa|Phantom}}s are equipped with powerful shields that can deflect cannon fire but are vulnerable to missiles due to their lower velocity.<ref name="LNoS">'''Halo: Reach''', campaign level ''[[Long Night of Solace (level)|Long Night of Solace]]''</ref>


Another way to disable the shipboard energy shields is through an EMP, which would knock out the shields, but EMPs are only seen being used by Shivas when they explode, so it is a much more wasteful method of taking them out.
The Covenant also use energy shields as [[hangar bay]] doors. These devices prevent the evacuation of atmosphere from the hangar bay and deny unwanted entry and exit. They can be phased in such a manner that atmosphere remains in the hangar bay while single ships can enter the vessel.{{Ref/Reuse|LNoS}}


==Forerunner energy shielding==
===Vehicle shielding===
[[Image:Sentinel Shielding.jpg|right|thumb|200px|A [[Sentinel]]'s energy shield.]]
Few Covenant ground and air vehicles are equipped with energy shields. The most notable exception is the {{Pattern|Shua'ee|Locust}}, a repurposed mining platform that is used as a "building killer". The Type-30 Locust emits a spherical shield that can resist most high-impact projectiles. However, this shield is rather weak and will dissipate under concentrated fire, exposing the Type-30 Locust's vulnerable hull. [[Karo'etba-pattern Ghost|Type-32 "Ghost" assault vehicles]] and [[Zurdo-pattern Wraith|Type-26 "Wraith" tanks]], while almost universally unshielded, can be retrofitted with energy shields that deflect most projectiles. The {{Pattern|D'nomlhe|Banshee}}, the [[Post-Covenant War conflicts|post-Covenant War]] successor to the [[Type-26 Banshee]], features numerous improvements, one of which is the implementation of energy shielding.<ref>'''[[Halo 5: Guardians]]'''</ref>
Forerunner [[Sentinels]] are equipped with energy shields, implying that the [[Covenant]]'s shielding technology was scavenged from [[Forerunner]] technology. The [[Enforcer]] is also shielded, and can absorb more damage than a normal Sentinel.


In the novel, [[Ghosts of Onyx]], a group of [[Spartan-III]]s encounter a [[Onyx Sentinel|unique type of Sentinel]]. While other types of shielding are always on, the Onyx sentinel can actively turn on their shield just before contact in order to deflect fast-moving projectiles. However, this can be overcome by slow moving projectile such as rocks, and in one case, being boarded by [[Kelly]]. Onyx sentinels can combine their shields to make the joint shield more effective.
===Stationary shielding===
The Covenant make extensive use of stationary energy shield devices. One of the most common is the energy barrier, which is used to cordon off restricted areas and to deny enemy movement within invaded cities.<ref>'''Halo 3: ODST''', campaign levels ''[[Mombasa Streets]]'', ''[[Tayari Plaza]]'', and''[[Kizingo Boulevard]]''</ref> This technology can also be used to form [[anti-vehicle barrier]]s; though vehicles and projectiles are repelled by these barriers, human and Covenant soldiers can pass through them on foot.<ref>'''Halo 3''', campaign level ''[[Tsavo Highway]]''</ref><ref>'''Halo Wars''', campaign level ''[[Relic Approach]]''</ref> [[Covenant portable shield|Smaller-scale barriers]], including [[Deployable Cover|man-portable ones]], are often used to provide cover during firefights.


The majority of Forerunner energy shields seem to consist of a translucent bubble composed of hexagonal patterns, as opposed to the wraparound shields typically used by the Covenant and UNSC. The Bubble shield also projects a similar shield, perhaps implying that it is an example of Forerunner technology.
[[Covenant citadel|Pre-fabricated Covenant bases]] are often outfitted with [[Covenant shield generator|shield generators]]; multiple shield generators can be installed at a base to provide incrementally greater protection.<ref>'''Halo Wars'''</ref> The Covenant sometimes use enormous energy shield domes to cover large areas, such as bases. These domes sometimes have no apparent power source,<ref name="Dome">'''Halo Wars''', campaign level ''[[Dome of Light]]''</ref> though they are also used on [[Deployment spire|teleportation spires]], which are commonly used during invasions.<ref name="ToTS">'''Halo: Reach''', campaign level ''[[Tip of the Spear]]''</ref> These shield domes are susceptible to high-intensity plasma.{{Ref/Reuse|Dome}} While Covenant aircraft can pass through these shields unharmed,{{Ref/Reuse|Dome}} UNSC aircraft that pass through the field receive a powerful [[electromagnetic pulse]] and suffer catastrophic systems failures.{{Ref/Reuse|ToTS}}


==Energy shields in-game==
Some [[Shade]] turrets are equipped with energy shielding. Some lighter versions have only frontal shielding, while [[Shade#Anti-air Shade|anti-aircraft models]] have multi-directional shielding.
[[File:Shield wave 1.jpg|thumb|right|A [[Spartan]]'s and Elite's shield recharging in [[multiplayer]].]]
*In ''[[Halo: Combat Evolved]]'', the status of the energy shield is shown at the top-right corner of the screen above the health bar, in ''[[Halo 2]]'', it is in the bottom-left above the motion tracker, in ''[[Halo 3]]'', it is in the top-center of the screen, and in ''[[Halo: Reach]]'', it is shown in the top-center of the screen above the health bar. They have been modified since ''Halo: Combat Evolved'' to charge faster and be more resistant.
*Both in [[Campaign]] and [[Multiplayer]] shields protect you for a brief amount of time from small arms and weapons. However, in [[Multiplayer]], you can have 50%, 100%, 200%, 300%, 400% ([[Halo: Combat Evolved]]), 500%, 1000%, 2000% shield, or none at all. Both [[Elites]] and [[Spartans]] have the same amount of shielding. A player's shields can be further augmented if they pick up an [[Overshield]].
*In [[Halo CE]] under standard game settings, energy shields begin regenerating 5 seconds after last being hit, and take 4 seconds to fully recharge from a total drain.
*In [[Halo 2]] and [[Halo 3]] under standard game settings, energy shields begin regenerating 4.25 seconds after last being hit, and take 1.75 seconds to fully recharge from a total drain.
*According to the E3 demo of the [[Halo: Reach]] campaign, energy shields begin regenerating 6 seconds after last being hit, and take 2.75 seconds to fully recharge from a total drain. Multiplayer regeneration may follow different numbers.
*A [[Regenerator]] can be used to make your shields recharge very quickly after taking damage.
*If a player deploys a [[Bubble Shield]] they will be protected from weapons fire by a spherical energy shield.
*Activating the [[Deployable Cover]] will generate a stationary energy shield that regenerates after disabled by continuous damage.
*[[Shield doors]] can be found on several maps and can be placed in all [[DLC maps]] in [[Forge]].


==The possibility of real life shielding ==
==Forerunner energy shielding==
[[File:H3 Sentinel Shielding.jpg|thumb|200px|A Sentinel's energy shield.]]
Many Forerunner constructs make use of energy shielding. Standard Forerunner [[Sentinel]]s are encased within an ovoid energy shield that can withstand moderate damage, while the [[Onyx Sentinel|much more powerful Sentinels]] from the [[Onyx]] [[Shield World]] possess spherical golden shields that activate whenever a fast-moving projectile approaches. The larger [[Enforcer]]s possess three-part energy shields that protect their photoreceptors and chassis from frontal assault, but do not protect against attack from any other angle. The majority of Forerunner energy shields seem to consist of a translucent bubble composed of hexagonal patterns, as opposed to the wraparound shields typically used by the Covenant and UNSC.


No devices of this kind currently exist in a practical form, although the University of Washington and the Rutherford Appleton Laboratory are exploring separate projects encasing satellites in a plasma "bubble", contained by wire mesh or electromagnetism, to vaporise debris before it can damage the satellite within. The possibility of [[Wikipedia:Solid Light|Solid Light]] also fits the criteria. However, one known flaw of the plasma "bubble" would be that it isn't designed to protect any specific subject. As a result, the bubble would overheat and incinerate the occupant of the bubble since it is made out of charged, superheated gas that would rapidly gain heat as damage was received.
The [[Ur-Didact|Didact's]] ship, ''[[Mantle's Approach]]'' possessed powerful energy shields: they were able to withstand Earth's [[Orbital defense platform|super MAC platforms]] with no damage. ''Infinity'''s specialized fore [[Magnetic Accelerator Cannon|MAC guns]] were able to penetrate them, but only caused minimal hull damage. The Didact also used shields to protect his [[Cryptum]] on [[Requiem]] and the [[Composer]]'s control area on ''Mantle's Approach.'' [[Cortana]] was able to fool the former shield with an override code and overload the latter with her [[Rampancy|rampant]] personalities.


Another possibility in principle for some form of shielding would be a combination of technologies, such as combining certain nanotech techniques like carbon nanotubes, a "wall" of lasers, and a thin layer of superheated plasma above it. The carbon nanotubes would be constructed and arrayed into a lattice structure conforming to the shape of the object, and would be capable of withstanding considerable impact, due to the nanotube's great strength. It would also be invisible due to its nanoscale structure, while the grid of lasers would help vaporize incoming objects that the plasma sheath did not absorb.<ref>[[wikipedia:Physics_of_the_Impossible|'''Wikipedia''': ''Physics of the Impossible'']]</ref>
The Forerunners made ubiquitous use of [[hard light]] technology, consisting of solidified photon-boson fields shaped into any desired form,<ref>[http://us2.campaign-archive1.com/?u=8efbd7b88156ac5f6faed8b69&id=4fdccf0da5&e=7be5970a3b '''Mega Bloks''', Special Report: ONI REAP-X]</ref> such as [[light bridge]]s. Hard light was also used to create [[Z-90 hardlight shield|infantry-issue shields]].
{{clear}}


Though the shield would work against solid impacts and particle weapons, it would not be able to stop lasers. It would need an ability called [[Wikipedia:Photochromism|Photochromism]], which is an ability in some materials to absorb certain parts of the electromagnetic spectrum, such as that possessed by sunglasses to deal with UV light. Though carbon nanotubes do not currently possess this ability, it may be possible to give them this capability. This shield would visually match the typical depictions of shields in science fiction. However, issues of flexibility, weight, energy requirements, heat dissipation, and similar considerations would make this far beyond most foreseeable technologies, though it is not impossible in principle. It should be noted that photochromism isn't an instantaneous process, it takes time to complete, during which enough radiation can penetrate successfully to accomplish the objective.
==Gameplay==
*The placement of the player's shield meter has undergone several changes over the years:
**In ''Halo: Combat Evolved'', the status of the energy shield is shown at the top-right corner of the screen above the health bar.
**In ''Halo 2'', the shield meter is in the bottom-left above the motion tracker.
**In ''Halo 3'', the shield meter is in the top-center of the screen.
**In ''Halo: Reach'', the shield meter is shown in the top-center of the screen above the health bar.
**In ''Halo 4'', the shield meter is again shown in the top-center of the screen, but there is no visible health bar.
**In ''Halo 5: Guardians'' and ''Halo Infinite'', the health bar is visible and the shield meter appears above it once more.
*In [[multiplayer]], players can have 50%, 100%, 200%, 300%, 400%, 500%, 1000%, or 2000% shield strength, or none at all--this can be further augmented if they pick up an overshield.
*In ''Halo 2'' and ''Halo 3'', both Elites and Spartans have the same amount of shielding; in ''Halo: Reach'', Elites have more shielding (but less health) than Spartans.
*In ''Halo: Combat Evolved'', during the level [[Two Betrayals]], energy shielding was used to overload [[Installation 04]]'s pulse generators.
*The amount of time it takes for the shields to regenerate in each Halo game has changed:
**In ''Halo: Combat Evolved'' under standard game settings, energy shields begin regenerating 5 seconds after last being hit and take four seconds to fully recharge from a total drain.
***In the Campaign, the shield regenerates at a fixed ratio of shield points per second, and the low shield tone activates at a fixed shield percentage. Because the difficulty affects shield strength, it takes 8 seconds on Easy to recharge from a full drain, which is so long that the recharge sound plays twice; the low shield tone plays for the first two seconds of regeneration.
**In ''Halo 2'' under standard game settings, energy shields begin regenerating 4.25 seconds after last being hit, and take 1.75 seconds to fully recharge from a total drain.
**In ''Halo 3'' under standard game settings, energy shields begin regenerating 5 seconds after last being hit, and take 2 seconds to fully recharge from a total drain.
*In ''Halo 4'', during the level [[Forerunner (level)|Forerunner]], energy shielding was used to enhance a {{Pattern|Karo'etba|Ghost}}'s boosting.
*In ''Halo 4'', during the level [[Shutdown]], energy shielding was used to generate an EMP which overloaded the communication network's carrier wave generator.
*In ''Halo 5: Guardians'', when a Spartan is revived after being downed, they and the reviver will be granted an [[Overshield]] that drains over time.
*In ''Halo Wars'', most of Covenant vehicles are equipped with energy shielding, while for the UNSC, it is exclusive for Spartan units, including [[Red Team]].
*In ''Halo Wars 2'', UNSC base defenses can be equipped with energy shield if player upgrades R&D leader power. Some vehicles are also equipped with energy shielding.


==Trivia==
==Trivia==
*In Halo: Combat Evolved, the shielding that Elites use is slightly stronger than that of a Spartan. Elites' shields only take 70% of the damage that projectile weapons deal out, whereas a Spartan's shielding tends to take full damage. (Case in point, the Spartan shield, with 75 hit points, only takes three shots from the [[M6D Pistol]] to break, whereas a Minor Elite's shield, which has 100 hit points, takes 8 shots from the same weapon.) Apparently this was changed in Halo 2 and 3 - in Halo 2, it takes four bursts from a Battle Rifle to break either a Spartan's shield or a Minor Elite's shield.  
{{Linkbox|gallery=yes|gallerypage=Images of energy shields}}
*In ''Halo 3'', in Campaign, the energy shields of Shielded Flood Combat forms do not flare when taking damage, like the Brute [[Power Armor]]. However, other Elite's shields still flare when taking damage.
* The health and shield values have changed from game to game.
*In ''Halo 3: ODST'', certain [[Drones]] are outfitted with personal shields.
**The health and shield points in ''Halo: Combat Evolved'' are higher than those in the subsequent games. In ''Halo: Combat Evolved'', both health and shield are given 75 points.{{citation needed}}
**On the other hand, there are only 45 health points and 70 shield points in ''Halo 3''.{{citation needed}}
* Until ''Halo: Reach'', shields regenerating were depicted by a wave of energy traveling up the wearer's body. To better fit with the treatment of shields as an energy field, the animation was changed to bands of energy slowly wrapping around the wearer then fading away.
* In ''Halo Infinite'', energy shields underwent an artistic redesign. Spartan shields now feature a hexagonal pattering, while Brute energy shielding is made up of horizontal lines.


==Gallery==
==Gallery==
<gallery widths="150" orientation="landscape">
<gallery>
File:A Sangheili's Shields.jpg|A [[Sangheili]]'s Personal Energy Shield overloading from sustained fire in the ''[[Halo: Reach]] Beta''.
File:HCE_SangheiliShield.jpg|A [[Sangheili Major|Major]] [[Sangheili]]'s shield protecting him from enemy fire in ''Halo: Combat Evolved''.
File:Halo Reach UNSC Shields.jpg|A [[Spartan III]]'s Personal Energy Shields flicker while taking damage from a [[Needler]] round in the ''[[Halo: Reach]] [[Halo: Reach Multiplayer Beta|Beta]]''
File:HCE_ShieldStation.gif|[[John-117]], inside the [[UNSC Pillar of Autumn|UNSC ''Pillar of Autumn'']]'s [[energy shield test station]].
File:H1 Library assault.jpg|John-117's shield protecting him from enemy fire in ''Halo: Combat Evolved''
File:Halo3 Snowbound-3rdperson-01.jpg|The shields on a twp [[MJOLNIR Powered Assault Armor/Mark VI|MJOLNIR armors]] flare after taking damage in ''Halo 3''.
File:Shield wave 1.jpg|A [[SPARTAN Program|Spartan's]] and Elite's shield recharging in ''Halo 3''.
File:H3 - Elite Energy Shield.jpg|A Sangheili's shields flickering from melee damage in ''Halo 3''.
File:H3ODST_Jiralhanae_Shields.jpg|A Jiralhanae's shields flicker from taking fire in ''Halo 3: ODST''.
File:H3ODST Huragok Overshield.jpg|A Huragok's passive ability which grants all allies within a certain radius overshields seen on this group of Covenant infantry in ''Halo 3: ODST's'' [[Firefight]] level [[Chasm Ten]].
File:HRBeta_Sangheili_Shields.jpg|A Sangheili's personal energy shield overloading from sustained fire in ''[[Halo: Reach Multiplayer Beta]]''.
File:HRBeta_Sangheili_EnergyShield_Flicker.jpg|An Elite's personal energy shield flickers from taking damage in the beta.
File:HR_Spartan_ShieldFlare.jpg|A [[SPARTAN-III Program|SPARTAN-III]]'s energy shields flicker while taking damage from a [[Type-33 Needler]] projectile.
File:HReach-LNoS-Shielded-Unggoy.jpg|Huragok-supplied shielding on [[Unggoy Ultra]]s in the ''Halo: Reach'' level ''Long Night of Solace''.
File:HR EliteShield Animation.gif|Animation of a Sangheili's shield.
File:H4-Raider-Grifball-02.jpg|Traditional golden shield flicker of the [[MJOLNIR Powered Assault Armor (GEN2)|MJOLNIR GEN2]] in ''[[Halo 4]]''.
File:H4 Exile SAWFirstPerson.jpg|Upclose shield flickering of the GEN2, note the teal color signifying [[overshield]]s.
File:H4FrigateShields.jpeg|Shielding on a ''Strident''-class frigate.
File:H5G-MJOLNIRshielding.png|The shields of a Spartan-IV in ''[[Halo 5: Guardians]]''.
File:H5G-T54Bansheeshielding.png|The energy shielding on a {{Pattern|D'nomlhe|Banshee}}.
File:H5G-Mantisshielding.png|The energy shielding on a [[HRUNTING/YGGDRASIL Mark IX Mantis]]
File:H5G-AV49shielding.png|The energy shielding on an [[AV-49 Wasp]].
File:H5G-UnggoyBodyguardshields.png|An Unggoy Bodyguard's shields flaring.
File:HW2 Blitz Ghost.png|Blitz card of a Banished Ghost's energy shielding in ''[[Halo Wars 2]]''.
File:HLW-Block.png|[[Linda-058]]'s [[ARGUS-class Mjolnir]]'s energy shielding absorbing turret rounds in ''[[Halo: Lone Wolf]]''.
File:HINF Concept JohnDefendingInfinity.jpg|Concept art of John-117's [[GEN3]] Mark VI PANSPEC energy shields for ''[[Halo Infinite]]''.
File:HINF MarkVIEnergyShield.jpg|John-117's energy shields in ''Halo Infinite''.
File:HINF EliteOfficer.png|A [[Sangheili Enforcer]] and [[Sangheili Mercenary|Mercenary]] with energy shields in ''Halo Infinite''.
File:HINF Ultras.png|A Banished [[Sangheili Ultra]] and an [[Unggoy Bouncer]] with energy shielding in ''Halo Infinite''.
File:HINF shielded brute warrior melee.png|A [[Jiralhanae Warrior]] with energy shielding in ''Halo Infinite''.
File:HINF Escharum Shield.png|[[Escharum]] protected by a specialized energy shield at the [[House of Reckoning (location)|House of Reckoning]].
File:HTV-energyshields.png|John-117's energy shield flaring from a Covenant Sangheili's energy sword in ''[[Halo: The Television Series]]''.
</gallery>
</gallery>
==List of appearances==
{{Col-begin}}
{{Col-2}}
*''[[Halo: The Fall of Reach]]'' {{1st}}
*''[[Halo: Combat Evolved]]''
*''[[Halo: The Flood]]''
*''[[Halo: First Strike]]''
*''[[Halo 2]]''
*''[[Halo Graphic Novel]]''
**''[[The Last Voyage of the Infinite Succor|Last Voyage of the Infinite Succor]]''
**''[[Armor Testing]]''
*''[[Halo: Ghosts of Onyx]]''
*''[[Halo: Uprising]]''
*''[[Halo 3]]''
*''[[Halo: Contact Harvest]]''
*''[[Halo: The Cole Protocol]]''
*''[[Halo Wars: Genesis]]''
*''[[Halo Wars]]''
*''[[Halo: Helljumper]]''
*''[[Halo 3: ODST]]''
*''[[Halo Legends]]''
**''[[Origins]]''
**''[[Odd One Out]]''
**''[[Prototype]]''
**''[[The Package (animated short)|The Package]]''
*''[[Halo: Evolutions - Essential Tales of the Halo Universe]]''
**''[[Stomping on the Heels of a Fuss]]''
**''[[Midnight in the Heart of Midlothian]]''
**''[[Dirt]]''
**''[[Headhunters (short story)|Headhunters]]''
**''[[Blunt Instruments]]''
**''[[Palace Hotel]]''
**''[[The Impossible Life and the Possible Death of Preston J. Cole]]''
**''[[The Return]]''
*''[[Halo: Blood Line]]''
*''[[Remember Reach]]''
**''[[Deliver Hope]]''
*''[[Halo: Reach]]''
*''[[Halo: Fall of Reach]]''
**''[[Halo: Fall of Reach - Boot Camp|Boot Camp]]''
**''[[Halo: Fall of Reach - Covenant|Covenant]]''
**''[[Halo: Fall of Reach - Invasion|Invasion]]''
{{Col-2}}
*''[[Halo: Cryptum]]''
*''[[Halo: Combat Evolved Anniversary]]''
**''[[Terminal (Halo: Combat Evolved Anniversary)|Terminals]]''
*''[[Halo 4]]''
**''[[Terminal (Halo 4)|Terminals]]''
**''[[Spartan Ops]]''
*''[[Halo: Spartan Assault]]''
*''[[Halo: Initiation]]''
*''[[Halo: Escalation]]''
*''[[Halo: Broken Circle]]''
*''[[Halo 2: Anniversary]]''
*''[[Halo: Hunters in the Dark]]''
*''[[Halo: Last Light]]''
*''[[Halo 5: Guardians]]''
*''[[Halo: Shadow of Intent]]''
*''[[Halo Wars 2]]''
*''[[Halo: Envoy]]''
*''[[Halo: Retribution]]''
*''[[Halo: Legacy of Onyx]]''
*''[[Halo: Bad Blood]]''
*''[[Halo: Fireteam Raven]]''
*''[[Halo: Silent Storm]]''
*''[[Halo: Lone Wolf]]''
*''[[Halo: Renegades]]''
*''[[Halo: Oblivion]]''
*''[[Halo: Shadows of Reach]]''
*''[[Halo: Divine Wind]]''
*''[[Halo Infinite]]''
*''[[Halo: The Television Series]]''
*''[[Halo: The Rubicon Protocol]]''
*''[[Halo: Winter Contention]]''
*''[[Halo: Outcasts]]''
*''[[Halo: Hippocratica]]'' {{Mo}}
{{Col-end}}


==Sources==
==Sources==
<references/>
{{Ref/Sources}}
 
==Related Pages==
*[[MJOLNIR Armor]]
*[[Elite Personal Energy Shield]]
*[[Jackal Point Defense Gauntlet]]
*[[Bubble Shield]]
*[[Overshields]]
*[[Regenerator]]
*[[Stationary Shield Generator]]
*[[Portable Shield Generator]]
 


{{SPARTAN Armor}}
[[Category:Shield technology| ]]
[[Category:MJOLNIR Armor]]
[[Category:Covenant technology]]
[[Category:Forerunner technology]]
[[Category:Human technology]]

Latest revision as of 14:32, February 11, 2024

John-117's GEN3 Mjolnir energy shielding flares up in Halo Infinite.
The PANSPEC energy shielding on John-117's MJOLRNIR [GEN3] after taking several plasma bolts.

Energy shielding is an advanced defensive technology making use of a field of energized particles that wraps around a surface, which deflects objects that attempt to impact the surface. Most energy shields are able to deflect various forms of damage, from material projectiles to directed energy streams. Several UNSC, Covenant and Forerunner vehicles, devices, and armor systems make use of energy shielding to protect users from harm.

Human energy shielding[edit]

Testing the shields on John-117's Mark V MJOLNIR armor.

Humans have used energy shield technology for a relatively brief amount of time. The earliest known example is the "bubble shield", a protective device developed and deployed by the Office of Naval Intelligence's Beta-5 Division,[1] which has been in service since at least 2544.[2] The Beta-5 Division also utilizes the "drop shield", a similar device which, despite being less resilient than the bubble shield, is capable of regenerating organic tissue through unknown means.[1]

Near the end of the Human-Covenant War, ONI scientists successfully reverse-engineered the technology used in Kig-Yar point defense gauntlets, leading to the technology's incorporation into the Mark V MJOLNIR Powered Assault Armor and all later iterations of the series. Energy shielding technology had previously been tested with the Grenadier variant of the MJOLNIR Powered Assault Armor/Mark IV,[3] though these tests were not successful.[4] The UNSC also reverse-engineered an "armor lock" plug-in module from functionally identical Covenant technology. In conjunction with the MJOLNIR armor's lock-down system, this device emits an impervious shield barrier that can deflect all small arms fire and can shed attached plasma grenades. The SPARTAN-III Headhunters wear an advanced version of the standard-issue Semi-Powered Infiltration armor which features energy shields that are similar to those of MJOLNIR, though the shields share power with the suit's active camouflage module.[5] With each new generation of armor, the shields were improved, an Unidentified master gunnery sergeant commenting that the Mark VI's shields were "much better than the Covenant tech we used for the Mark V."[6]

The UNSC has also developed energy barriers which are used to separate pressurized areas, such as hangar bays, from the vacuum of space. One of the UNSC's most recent breakthroughs in energy shield development came with the creation of the FSS-1000 Sabre orbital fighter, which is the first human spacecraft known to use energy shields. The post-war Mantis is another UNSC vehicle that utilizes energy shields. The post-war successor to the Longsword and Sabres, the F-41 Broadsword, is equipped with energy shields, though not powerful enough to travel through Slipspace.[7] Some warships also received shields post-war, with at least the UNSC Infinity, its embarked frigates, and the Autumn-class heavy cruiser possessing energy shielding.[8]

Covenant energy shielding[edit]

A Sangheili's energy shield flaring.

The Covenant make extensive use of energy shielding technology. Nearly all Covenant starships larger than a dropship use energy shields and several ground-based structures use shields as well. Many Covenant warriors are equipped with energy shields.

Personal shielding[edit]

Most Sangheili, many Jiralhanae, and some high-ranking Unggoy and Yanme'e are equipped with energy shields that are integrated into the wearer's armor, or, in the latter case, carapace. Kig-Yar warriors use energy shield gauntlets that protect them from most oncoming fire but leaves them vulnerable to flanking attacks and grenades. The Covenant often use Huragok to provide energy shielding to troops on the battlefield. The Covenant also utilize overshields, which provide additional layers of energy shielding to the wearer, and energy shield regenerators. Sangheili and Jiralhanae warriors sometimes use armor lock systems, from which the UNSC technology was reverse-engineered; Jiralhanae are able to use this technology even without power armor.

Though the Hierarchs are not meant to encounter combat, their anti-gravity chairs emit powerful energy shields. They are able to deflect all forms of projectile, plasma, and explosive weaponry and seemingly never become depleted. However, one can simply walk through the shield. The shield used by Tartarus, the Chieftain of the Jiralhanae, was much different and seems to have to be actively turned on. His shield could deflect nearly all attacks save for those of a captured beam rifle. A similar, though much less potent, technology is often used by Jiralhanae chieftains; this "invincibility" device lasts only a matter of seconds, though it renders the user impervious to small arms fire. The device can also be used by personnel who do not otherwise possess energy shielding, such as UNSC Orbital Drop Shock Troopers.[9]

Spacecraft shielding[edit]

Nearly all Covenant vessels are protected by highly resistant energy shields. These shields can withstand an impressive amount of firepower and can recharge very quickly. Covenant vessels' shields can absorb almost all missile fire, including hundreds of Archer missiles and even a low-yield Shiva-class nuclear missile, although Shiva nukes will usually deplete their shields, making them vulnerable to smaller weapons. The only UNSC weapons capable of penetrating a Covenant starship's shield are the Magnetic Accelerator Cannons. Even then, ship-based MACs take multiple rounds to drop the shields; only high powered starship or a "Super MAC" round from an orbital defense platform can penetrate a Covenant ship's shields in one hit.

Covenant starship shielding does have a notable flaw, however: Whenever a starship launches a plasma torpedo or pulse laser, a small section of the energy shield must drop to allow the weapon to fire. Otherwise, the energy released would detonate on the inside of the shields, damaging the ship.

While projectile weaponry is generally ineffective against Covenant starship shielding, directed energy weaponry can disable shields with relative ease, in much the same manner as Sangheili energy shields. Another way to disable the shipboard energy shields is through the use of a large-scale electromagnetic pulse.[10]

The Covenant's Type-31 "Seraph" fighters are typically equipped with energy shields, though this does not seem to always be the case.[2] R'shwupa-pattern Phantoms are equipped with powerful shields that can deflect cannon fire but are vulnerable to missiles due to their lower velocity.[11]

The Covenant also use energy shields as hangar bay doors. These devices prevent the evacuation of atmosphere from the hangar bay and deny unwanted entry and exit. They can be phased in such a manner that atmosphere remains in the hangar bay while single ships can enter the vessel.[11]

Vehicle shielding[edit]

Few Covenant ground and air vehicles are equipped with energy shields. The most notable exception is the Shua'ee-pattern Locust, a repurposed mining platform that is used as a "building killer". The Type-30 Locust emits a spherical shield that can resist most high-impact projectiles. However, this shield is rather weak and will dissipate under concentrated fire, exposing the Type-30 Locust's vulnerable hull. Type-32 "Ghost" assault vehicles and Type-26 "Wraith" tanks, while almost universally unshielded, can be retrofitted with energy shields that deflect most projectiles. The D'nomlhe-pattern Banshee, the post-Covenant War successor to the Type-26 Banshee, features numerous improvements, one of which is the implementation of energy shielding.[12]

Stationary shielding[edit]

The Covenant make extensive use of stationary energy shield devices. One of the most common is the energy barrier, which is used to cordon off restricted areas and to deny enemy movement within invaded cities.[13] This technology can also be used to form anti-vehicle barriers; though vehicles and projectiles are repelled by these barriers, human and Covenant soldiers can pass through them on foot.[14][15] Smaller-scale barriers, including man-portable ones, are often used to provide cover during firefights.

Pre-fabricated Covenant bases are often outfitted with shield generators; multiple shield generators can be installed at a base to provide incrementally greater protection.[16] The Covenant sometimes use enormous energy shield domes to cover large areas, such as bases. These domes sometimes have no apparent power source,[17] though they are also used on teleportation spires, which are commonly used during invasions.[18] These shield domes are susceptible to high-intensity plasma.[17] While Covenant aircraft can pass through these shields unharmed,[17] UNSC aircraft that pass through the field receive a powerful electromagnetic pulse and suffer catastrophic systems failures.[18]

Some Shade turrets are equipped with energy shielding. Some lighter versions have only frontal shielding, while anti-aircraft models have multi-directional shielding.

Forerunner energy shielding[edit]

A Sentinel's energy shield.

Many Forerunner constructs make use of energy shielding. Standard Forerunner Sentinels are encased within an ovoid energy shield that can withstand moderate damage, while the much more powerful Sentinels from the Onyx Shield World possess spherical golden shields that activate whenever a fast-moving projectile approaches. The larger Enforcers possess three-part energy shields that protect their photoreceptors and chassis from frontal assault, but do not protect against attack from any other angle. The majority of Forerunner energy shields seem to consist of a translucent bubble composed of hexagonal patterns, as opposed to the wraparound shields typically used by the Covenant and UNSC.

The Didact's ship, Mantle's Approach possessed powerful energy shields: they were able to withstand Earth's super MAC platforms with no damage. Infinity's specialized fore MAC guns were able to penetrate them, but only caused minimal hull damage. The Didact also used shields to protect his Cryptum on Requiem and the Composer's control area on Mantle's Approach. Cortana was able to fool the former shield with an override code and overload the latter with her rampant personalities.

The Forerunners made ubiquitous use of hard light technology, consisting of solidified photon-boson fields shaped into any desired form,[19] such as light bridges. Hard light was also used to create infantry-issue shields.

Gameplay[edit]

  • The placement of the player's shield meter has undergone several changes over the years:
    • In Halo: Combat Evolved, the status of the energy shield is shown at the top-right corner of the screen above the health bar.
    • In Halo 2, the shield meter is in the bottom-left above the motion tracker.
    • In Halo 3, the shield meter is in the top-center of the screen.
    • In Halo: Reach, the shield meter is shown in the top-center of the screen above the health bar.
    • In Halo 4, the shield meter is again shown in the top-center of the screen, but there is no visible health bar.
    • In Halo 5: Guardians and Halo Infinite, the health bar is visible and the shield meter appears above it once more.
  • In multiplayer, players can have 50%, 100%, 200%, 300%, 400%, 500%, 1000%, or 2000% shield strength, or none at all--this can be further augmented if they pick up an overshield.
  • In Halo 2 and Halo 3, both Elites and Spartans have the same amount of shielding; in Halo: Reach, Elites have more shielding (but less health) than Spartans.
  • In Halo: Combat Evolved, during the level Two Betrayals, energy shielding was used to overload Installation 04's pulse generators.
  • The amount of time it takes for the shields to regenerate in each Halo game has changed:
    • In Halo: Combat Evolved under standard game settings, energy shields begin regenerating 5 seconds after last being hit and take four seconds to fully recharge from a total drain.
      • In the Campaign, the shield regenerates at a fixed ratio of shield points per second, and the low shield tone activates at a fixed shield percentage. Because the difficulty affects shield strength, it takes 8 seconds on Easy to recharge from a full drain, which is so long that the recharge sound plays twice; the low shield tone plays for the first two seconds of regeneration.
    • In Halo 2 under standard game settings, energy shields begin regenerating 4.25 seconds after last being hit, and take 1.75 seconds to fully recharge from a total drain.
    • In Halo 3 under standard game settings, energy shields begin regenerating 5 seconds after last being hit, and take 2 seconds to fully recharge from a total drain.
  • In Halo 4, during the level Forerunner, energy shielding was used to enhance a Karo'etba-pattern Ghost's boosting.
  • In Halo 4, during the level Shutdown, energy shielding was used to generate an EMP which overloaded the communication network's carrier wave generator.
  • In Halo 5: Guardians, when a Spartan is revived after being downed, they and the reviver will be granted an Overshield that drains over time.
  • In Halo Wars, most of Covenant vehicles are equipped with energy shielding, while for the UNSC, it is exclusive for Spartan units, including Red Team.
  • In Halo Wars 2, UNSC base defenses can be equipped with energy shield if player upgrades R&D leader power. Some vehicles are also equipped with energy shielding.

Trivia[edit]

Main-Superintendent.png Browse more images in this article's gallery page.
  • The health and shield values have changed from game to game.
    • The health and shield points in Halo: Combat Evolved are higher than those in the subsequent games. In Halo: Combat Evolved, both health and shield are given 75 points.[citation needed]
    • On the other hand, there are only 45 health points and 70 shield points in Halo 3.[citation needed]
  • Until Halo: Reach, shields regenerating were depicted by a wave of energy traveling up the wearer's body. To better fit with the treatment of shields as an energy field, the animation was changed to bands of energy slowly wrapping around the wearer then fading away.
  • In Halo Infinite, energy shields underwent an artistic redesign. Spartan shields now feature a hexagonal pattering, while Brute energy shielding is made up of horizontal lines.

Gallery[edit]

List of appearances[edit]

Sources[edit]

  1. ^ a b Halo: Reach manual
  2. ^ a b Halo: Legends: The Package
  3. ^ Halo: Reach, The Armory
  4. ^ Dr. Halsey's personal journal
  5. ^ Halo: Evolutions - Essential Tales of the Halo Universe, Headhunters
  6. ^ Halo 2, campaign level The Armory
  7. ^ Halo Waypoint: Mantis Trailer
  8. ^ Image showing frigate shields above hull
  9. ^ Halo 3: ODST
  10. ^ Halo: The Fall of Reach, page 153
  11. ^ a b Halo: Reach, campaign level Long Night of Solace
  12. ^ Halo 5: Guardians
  13. ^ Halo 3: ODST, campaign levels Mombasa Streets, Tayari Plaza, andKizingo Boulevard
  14. ^ Halo 3, campaign level Tsavo Highway
  15. ^ Halo Wars, campaign level Relic Approach
  16. ^ Halo Wars
  17. ^ a b c Halo Wars, campaign level Dome of Light
  18. ^ a b Halo: Reach, campaign level Tip of the Spear
  19. ^ Mega Bloks, Special Report: ONI REAP-X
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