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| {{Status|Canon}} | | {{Era|Forerunner|HCW}} |
| {{disambig header|the Halo installation|the campaign level|Delta Halo}} | | {{Seealso Level|Delta Halo (level)|Halo 2}} |
| {{Megastructure infobox | | {{Haloring |
| |image=[[File:H2A - DeltaHalo.jpg|300px]] | | |image = [[File:Delta Halo.jpg|280px]] |
| |description= | | |name = Installation 05<br>"Delta Halo" |
| |location=Orbiting [[Substance]], [[Coelest system]],<ref name="VIS">'''[[Halo: The Essential Visual Guide]]''', ''page 46''</ref> [[Norma Arm]]<ref name="warfleet">''[[Halo: Warfleet]]'', p. 13</ref> | | |location = [[Coelest system]], [[Substance]]<ref name="VIS">'''[[Halo: The Essential Visual Guide]]''', ''page 46''</ref> |
| |anchor=Substance/[[Opusculus]]{{Ref/Reuse|VIS}} | | |monitor = [[2401 Penitent Tangent]] |
| |type=[[Halo Array|Halo installation]] | | |gravitational anchor(s)=Substance<ref name="VIS"/> |
| |function=Galactic sterilization/[[Flood]] containment and research | | |adjacent satellite(s)=[[Opusculus]]<ref name="VIS"/> |
| |caretaker=[[2401 Penitent Tangent]]<ref name="universe">[https://www.halowaypoint.com/en-us/universe/locations/delta-halo '''Halo Waypoint''': ''Delta Halo'']</ref> | | |status = Deactivated due to Activation Index removal |
| |constructed=c. [[97,445 BCE]] | | |date of construction = During the [[Forerunner-Flood war]] |
| |destroyed=*Surface [[Glassing|glassed]] by the [[Fleet of Retribution]] to prevent further Flood outbreak<ref name="GoO glassed">'''[[Halo: Ghosts of Onyx]]''', pages 195-197</ref><ref name="ENC glassed">'''[[Halo Encyclopedia (2009 edition)]]''', ''page 186'' (''"Having been cauterized and quarantined by the [[Sangheili]] fleets, 05 now sits dormant."'')</ref> | | |range = 25,000 light years |
| *Deactivated from [[Installation 00]] as of December 11, 2552{{Ref/Reuse|ENC glassed}}
| | |firing record = 1.2 trillion simulated, 1 actual, 2 firings halted mid sequence (misfire) |
| |destroyed-title=Status
| | |diameter = 10,000 kilometers<ref name="VIS"/> |
| |diameter={{Convert|10000|km|mi|sp=us}}{{Ref/Reuse|VIS}}
| | |surface width={{convert|318|km|mi}}<ref name="VIS"/> |
| |surface width={{Convert|318|km|mi|sp=us}}{{Ref/Reuse|VIS}} | | |gravity=1.04G (approx)<ref name="VIS"/> |
| |gravity=1.04 G{{Ref/Reuse|VIS}} | | |surface temperature=-19°C to 42°C (-2.2°F to 107.6°F) (controlled)<ref name="VIS"/> |
| |surface temperature=-19°C to 42°C (-2.2°F to 107.6°F){{Ref/Reuse|VIS}} | | |atmosphere=1.01 ([[Nitrogen|N<sub>2</sub>]], [[Oxygen|O<sub>2</sub>]])<ref name="VIS"/> |
| |atmosphere=1.01 ([[Wikipedia:Nitrogen|N<sub>2</sub>]], [[Oxygen|O<sub>2</sub>]]){{Ref/Reuse|VIS}} | |
| }} | | }} |
| {{Quote|This installation has a successful utilization record of 1.2 trillion simulated and one actual. It is ready to fire on demand.|[[2401 Penitent Tangent]]<ref name="h2grave">'''[[Halo 2]]''', campaign level ''[[Gravemind (level)|Gravemind]]''</ref>}} | | {{quote|This installation has a successful utilization record of 1.2 trillion simulated and one actual. It is ready to fire on demand.|[[2401 Penitent Tangent]]}} |
| | '''Installation 05''', also known as '''Delta Halo''', is one of the seven massive [[Halo Array|Halo fortress worlds]] built by the [[Forerunner]]s. It is also the second Halo ring to be discovered by [[human]]ity. Installation 05 orbits a gas giant known as [[Substance]], and was managed by its [[monitor]], [[2401 Penitent Tangent]]. |
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| '''Installation 05''', also known as '''Delta Halo''',<ref name="deltahalo">'''Halo 2''', campaign level ''[[Delta Halo]]''</ref> is one of the massive [[Halo Array|Halo fortress worlds]] built by the [[Forerunner]]s. The ring was formerly maintained by [[monitor]] [[2401 Penitent Tangent]], until his lax oversight led to the [[Flood]]'s escape from their [[Flood containment facility|containment facilities]].{{Ref/Reuse|ENC glassed}} The Halo orbits [[Substance]], an ice giant and the fourth planet in orbit in the [[Coelest system]],{{Ref/Reuse|VIS}} located in the [[Norma Arm]] of the [[Milky Way]] galaxy.{{Ref/Reuse|warfleet}}
| | == Summary == |
| | The purpose of Installation 05, along with its brethren, was to preclude and thwart the parasite forms known as [[the Flood]] from consuming all sentient life in the galaxy. In the event of a Flood outbreak, one of the seven installations could be triggered to annihilate all sentient life within 25,000 light years. Once one ring is set off all remaining rings would activate. All seven rings could be fired at once if need be. |
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| The purpose of Installation 05, along with its brethren, was to preclude and thwart the parasitic Flood from consuming all [[Sentience|sentient]] life in the [[Milky Way|galaxy]]. In the event of a Flood outbreak, one of the seven installations could be triggered to annihilate all sentient life within 25,000 light-years. Once one ring is set off, all remaining rings would activate. All seven rings could be fired at once if need be.{{Ref/Reuse|ENC glassed}} | | The climate of Installation 05 is similar to that of Installation 04, with varying weather conditions in different areas. Its terrain includes lakes and jungles, as well as the ice and snow-filled [[Quarantine Zone]]. |
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| Installation 05 was the third Halo discovered by [[human]]ity<ref name="11th">'''[[Eleventh Hour reports]]''', ''#5''</ref> and the second found by the [[Covenant]].{{Ref/Reuse|deltahalo}} The ring became a battleground near the end of the [[Human-Covenant War]]; more importantly, it was at Installation 05 that the [[Great Schism]], the civil war that sundered the Covenant, began. The installation was ultimately partially [[Glassing|glassed]] by the [[Sangheili]] in order to prevent the Flood from escaping in the wake of the [[Battle of Installation 05]].{{Ref/Reuse|GoO glassed}}{{Ref/Reuse|ENC glassed}}
| | == Architecture == |
| | {{Quote|You know, I think the Forerunners built these new structures around the old, to protect them, to honor them.|[[Cortana]], commenting on some of the structures on Delta Halo.<ref name="regret">'''[[Halo 2]]''', level ''[[Regret (Level)|Regret]]''</ref>}} |
| | [[File:Ruins1600.jpg|thumb|right|200px|Ruins on Installation 05.]] |
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| ==History==
| | The architecture of structures on Installation 05 follows the general Forerunner aesthetic (i.e angular design, and same basic functional structures), but has a clearly distinct style from some other installations such as [[Installation 00]] or [[Installation 04|04]], an example being Installation 05's Control Room having similarity to Installation 04's Control Room in purpose, but with a different look, including a spherical shape at the center of the building. This is different from both versions of Installation 04, which look almost exactly the same (being of the same style), and have the same surroundings. In addition, many structures on Installation 05 including the [[Temple (Installation 05)|Temple]] appear to be more weathered than those on other installations, having a slightly brown-tinted gray color. |
| ===Early history===
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| {{Quote|Those who built this place knew what they wrought. Do not mistake their intent, or all will perish as they did before.|The [[Gravemind]]{{Ref/Reuse|h2grave}}}}
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| Installation 05 was built by [[Installation 00]]'s [[Foundry (location)|Foundry]]<ref name="p371">'''[[Halo: Primordium]]''', ''page 371''</ref> approximately around the same time as the rest of the [[Halo Array]], circa [[97,445 BCE]].<ref>[https://www.halowaypoint.com/en-us/news/canon-fodder-array-with-words '''Halo Waypoint''': ''Canon Fodder - Array With Words'']</ref><ref>[https://www.halowaypoint.com/en-us/universe/tech/halo-array '''Halo Waypoint''': ''Halo Array'']</ref> [[Human]] analysts of the 26th century believe that an extensive collection of species were brought to the installation to be studied by the [[Lifeworker]]s, as part of the [[Conservation Measure]].{{Ref/Reuse|universe}} Installation 05 was activated shortly after by the [[Forerunner]]s at the conclusion of the [[Forerunner-Flood war]], eradicating all [[Sentience|sentient]] life in the galaxy and, presumably, destroying the [[Flood]] as well, with the exception of those specimens kept in the Halos for research. After the Array was fired, the installation was hardly peaceful, with over 32,967 simulated test firing a day. As of [[2552]], it had a record of 1.2 trillion simulated firings and one actual activation.{{Ref/Reuse|h2grave}}
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| ===Flood outbreak===
| | Much of the decor within the structures of Installation 05 seems to be less practical and more ostentatious than that of Installation 04. Many of the rooms contain standing tables and basins that seem to serve a purely aesthetic purpose, perhaps at one time serving as lamps or torches. |
| [[File:HTMCC-H2A 2401PenitentTangent.png|thumb|250px|2401 Penitent Tangent, Installation 05's monitor.]]
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| At some point, the Flood on Installation 05 escaped and evaded containment due to negligence on the part of the installation's [[monitor]], [[2401 Penitent Tangent]].<ref>'''[[Halo 3]]''', multiplayer level ''[[Cold Storage]]''</ref><ref name="containmentfail">'''[[Containment failure report]]'''</ref> It is believed that the Flood's escape was either the result of a system malfunction that was not properly addressed by Penitent Tangent or due to the meddling of visiting species.{{Ref/Reuse|universe}} The Flood quickly grew out of control around the area of the installation's [[Library]];{{Ref/Reuse|containmentfail}} the Flood were kept contained by a [[Sentinel wall]] built around the Library. Somehow, the Flood on the ring were able to amass enough biomass to create a [[Gravemind]]. 2401 Penitent Tangent attempted to control the situation, but he was captured by the recently formed Gravemind.{{Ref/Reuse|ENC glassed}} Without the monitor, the [[Sentinels]] of the Halo lacked a controlling intelligence and so many of the structures around Installation 05 fell into disrepair, and most of the installation came to look like a jungle strewn with ruins.{{Ref/Reuse|containmentfail}}
| | A curious feature on Installation 05 are some of its ruins. While visibly consistent with Forerunner architecture, the ruins seem clearly older and more primitive than most Forerunner structures, and seemingly predate the construction of the ring.<ref name="VIS"/> They are also made of stone, as opposed to the metallic material seen on the majority of Forerunner constructs. This brings up the question of whether these are Forerunner structures at all, or if they were built by an even more ancient civilization or the Forerunners themselves long time before the construction of the Halo installations, and later moved to the ring for unknown reasons.<ref>'''[[Halo Waypoint]]''', ''Memory Lane: [[Sanctuary]]''</ref> Still, only a fraction of the installation's structures represent the older variety, as most of them are in a similar condition as on other known installations. It has also been suggested that some of the newer structures were built around the older ones to support and protect them.<ref name="regret"/> |
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| | Forerunner stone ruins are not exclusive to Installation 05 however. [[Sandtrap|A complex of ruins]] in an unknown location holds similar structures. Much like some of the ruins on Installation 05, this ruin complex is also surrounded by newer structures. |
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| Even with the addition of Forerunner [[Aggressor Sentinel]]s and [[Enforcers]], the Flood were able to remain loose, albeit contained within the [[Quarantine Zone]] by the Sentinel wall.{{Ref/Reuse|zone}} This stalemate is believed to be the cause of the slow decline into the deteriorated condition of the structures of the installation. The Gravemind itself resided in the chamber directly below the [[index chamber]] in the center of the Library.{{Ref/Reuse|h2grave}} The use of the Quarantine Zone was not a standard [[containment protocol]], but the lack of a monitor forced Installation 05's Sentinels and other [[ancilla]] to employ unique countermeasures.{{Ref/Reuse|universe}}
| | == History == |
| | {{quote|Those who built this place knew what they wrought. Do not mistake their intent, or all will perish as they did before.|[[Gravemind]]}} |
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| ===Discovery and conflict===
| | It is assumed that Installation 05 was built around the same time as Installation 04, circa 100,300 years before the events of 2552. It was activated shortly thereafter by the Forerunners, eradicating all sentient life in the galaxy and, presumably, destroying the Flood as well, with the exception of those specimens kept in the Halos for research. After the Array was fired, the installation was hardly peaceful, with over 32,967 simulated test firing a day. As of 2552, it had a record of 1.2 trillion simulated firings and one actual activation. |
| {{Quote|no=two|1=Miranda Keyes|q1=Cortana, what exactly am I looking at?|2=Cortana|q2=That... is another Halo.|3=Commander Miranda Keyes and Cortana upon discovering the installation{{Ref/Reuse|deltahalo}}}}
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| [[File:H2A - In Amber Clad approaches Halo.png|thumb|250px|left|The discovery of Installation 05.]]
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| In [[2551]], following the [[Battle of Meridian]] during the [[Human-Covenant War]], [[Steward]]s of the [[Covenant]]'s [[High Prophet of Regret]] studied a [[Luminary]] found on [[Meridian|the world]]. The Luminary revealed the location of the [[Portal at Voi|portal]] that led to Installation 00, as well as the location of each ring of the Halo Array.<ref name="beholden">'''[[Halo 2: Anniversary]]''', ''[[Terminal (Halo 2: Anniversary)|Terminal 14]]''</ref><ref>''Halo: Mythos'', page 104</ref> Regret traveled to the portal's location, unaware that his destination was [[Earth]], humanity's homeworld. Arriving on [[2552#October|October 20, 2552]], the High Prophet of Regret ultimately fled the [[Battle of Earth]] to Installation 05 aboard his [[flagship]], ''[[Solemn Penance]]''. The [[CAS-class assault carrier|carrier]] was pursued by {{UNSCShip|In Amber Clad}}, captained by [[Commander]] [[Miranda Keyes]].<ref name="metro">'''Halo 2''', campaign level ''[[Metropolis]]''</ref> ''In Amber Clad'' exited [[slipstream space]] near the installation on [[2552#November|November 2, 2552]]; [[UNSC]] forces were deployed to the ringworld to [[Battle of Installation 05|engage]] Covenant forces, while [[Spartan-II]] [[John-117]] was ordered to assassinate Regret.{{Ref/Reuse|deltahalo}} While Commander Keyes took ''In Amber Clad'' to the installation's Library to procure the [[activation index]] before the Covenant, John-117 located Regret at a [[Temple (Installation 05)|temple]] on the ring. After eliminating the [[Hierarch]], ''[[High Charity]]'' and its [[High Charity defense fleet|defense fleet]]—having been contacted earlier by Regret who sought assistance—arrived over the installation. ''Solemn Penance'' attempted to destroy the Spartan alongside the temple, though John-117 escaped by jumping into a nearby lake where he was captured by the Gravemind.<ref name="regret">'''Halo 2''', campaign level ''[[Regret (Halo 2 level)|Regret]]''</ref>
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| [[File:H2A - Great Schism.jpg|thumb|250px|Jiralhanae and Sangheili vessels battle around the Halo.]]
| | ===Flood outbreak=== |
| Meanwhile, [[Arbiter]] [[Thel 'Vadam]]ee was charged with retrieving the activation index from the installation to begin the [[Great Journey]]. Following the orders of [[Jiralhanae]] [[Chieftain of the Jiralhanae|Chieftain]] [[Tartarus]], the Arbiter infiltrated the Sentinel wall and deactivated its [[containment shield]] to allow Covenant infantry deployment in the area. Inadvertently, this allowed the Flood to escape the Quarantine Zone.<ref name="icon">'''Halo 2''', campaign level ''[[Sacred Icon]]''</ref> Journeying to the Library, the Arbiter encountered Commander Keyes and Sergeant Major [[Avery Johnson]] who had just retrieved the index. While engaging them, the index was taken by Tartarus and the humans were captured by his Jiralhanae forces. Following the orders of the [[Prophet of Truth|High Prophet of Truth]], Tartarus betrayed the Arbiter and cast him into the depths of the [[index chamber]], initiating the [[Great Schism]].<ref name="zone">'''Halo 2''', campaign level ''[[Quarantine Zone]]''</ref> The Arbiter was also captured by the Gravemind, and brought to the chamber where the Flood intelligence resided. Within the chamber, the Gravemind informed the Arbiter and John-117 of the Halo's true purpose. Using Installation 05's [[teleportation grid]], the Gravemind sent John-117 to the orbiting ''High Charity'' and the Arbiter to the installation's [[Control Room (Installation 05)|Control Room]] to search for the index and prevent the Covenant from activating the Halo. The Flood managed to board ''In Amber Clad'' and made a slipspace jump inside of ''High Charity'' to infect the holy city. While John-117 pursued the Hierarchs and Tartarus to retrieve the index, they were able to escape with their human captives—though the [[Prophet of Mercy|High Prophet of Mercy]] was killed by a [[Pod infector]].{{Ref/Reuse|h2grave}}
| | Around the year 2352, the Flood on Installation 05 escaped and evaded containment due to negligence on the part of the installation's Monitor, Penitent Tangent. <ref>'''[[Halo 3]]''', multiplayer level ''[[Cold Storage (Level)|Cold Storage]]''</ref><ref name="containmentfail">'''[[Containment failure report]]'''</ref> The Flood quickly grew out of control around the area of the Installation's Library.<ref name="containmentfail"/> The Flood were kept contained by a [[Sentinel Wall]] built around the Library, but [[2401 Penitent Tangent]] was captured. Without it, the [[Sentinels]] of the Halo lacked a controlling intelligence and so many of the structures around Installation 05 fell into disrepair, and most of the Installation came to look like a jungle strewn with ruins.<ref name="containmentfail"/> |
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| [[File:H2A - Battle of Delta Halo.jpg|thumb|250px|left|The firing of the installation is averted.]]
| | Somehow, the Flood on the ring were able to amass enough biomass to create a Gravemind, and at the time of the Human-Covenant war, it was holding 2401 Penitent Tangent captive. Even with the addition of Forerunner [[Sentinel Majors]] and [[Enforcers]], the Flood were able to remain loose, albeit contained within the [[Quarantine Zone]] by the Sentinel Wall. This stalemate is believed to be the cause of the slow decline into the horrible condition of the structures of the Installation. The Gravemind itself resided in the chamber directly below the [[Index Chamber]] in the center of the Library. |
| While Tartarus took the index and the humans to the Control Room to activate the installation, Truth abandoned ''High Charity'' aboard the city's [[Forerunner Dreadnought]] and fled to Earth to seek out the Ark. In the event that Tartarus was successful in activating the Halo, [[Artificial intelligence|AI]] [[Cortana]] decided to remain on ''High Charity'', where she could detonate the engines of ''In Amber Clad'' to destroy the installation; John-117 boarded Truth's Dreadnought just as it exited the system to eliminate the High Prophet.<ref name="charity">'''Halo 2''', campaign level, ''[[High Charity (level)|High Charity]]''</ref> Meanwhile, the Great Schism resulted in the Sangheili completely abandoning the Covenant and a civil war ensuing throughout the system. Sangheili and Jiralhanae ships of the ''High Charity'' defense fleet battled each other over the installation, with both sides focusing a small number of their ships to prevent Flood-infected vessels from trying to escape the system.<ref>'''Halo: Ghosts of Onyx''', ''pages 193-198''</ref> On the Halo, the Arbiter regrouped with [[Special Operations Commander|Commander]] [[Rtas 'Vadum]], and the two led Sangheili forces towards the Control Room.<ref name="uprising">'''Halo 2''', campaign level, ''[[Uprising]]''</ref> While Tartarus entered the Control Room with the index and the captured Keyes and [[343 Guilty Spark]], the Sangheili unintentionally rescued Johnson from his Jiralhanae captors. With Johnson operating a {{Pattern|Protos|Scarab}}, the Arbiter agreed to work with him to stop Tartarus from activating the Halo. Johnson used the Scarab to destroy the Control Room's entrance and he entered the chamber, along with the Arbiter and a handful of Sangheili warriors.<ref name="journey">'''Halo 2''', campaign level ''[[The Great Journey]]''</ref>
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| Tartarus activated the Halo when Johnson and the Sangheili arrived to intervene. While the chieftain battled the Arbiter and Johnson, Keyes and Guilty Spark worked to retrieve the index and stop the activation process. The Arbiter and Johnson managed to kill Tartarus, while Keyes retrieved the index out of its chamber and the firing sequence was put on standby mode, ready for remote activation through the Ark.{{Ref/Reuse|journey}} The battle soon ended when the Sangheili ships proved victorious over the Jiralhanae. Under the command of 'Vadum, the remnants of the Sangheili fleet sterilized the installation by [[glassing]] the Flood-infected portions of its surface, thereby preventing the parasite from leaving the [[Coelest system]]. According to [[000 Tragic Solitude]], the surface of Installation 05 was "scorched to char and ash" by the Sangheili ships. Now allied, the Sangheili and humans eventually returned to Earth to assist with finishing off the Covenant.{{Ref/Reuse|GoO glassed}}{{Ref/Reuse|ENC glassed}}<ref>'''[[Halo 3]]''', campaign level ''[[The Covenant]]''</ref><ref name="HITD272">'''[[Halo: Hunters in the Dark]]''', ''page 272''</ref>
| | === Discovery === |
| | [[File:Discovery.jpg|right|thumb|The discovery of Installation 05.]] |
| | In [[2552]], the [[High Prophet of Regret]] discovered the location of Installation 05 during the [[Battle of Earth]]. He made a [[slipspace]] jump from [[Earth]] to the Installation, followed closely by [[Commander]] [[Miranda Keyes]]' ship {{UNSCShip|In Amber Clad}}. |
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| ===Post-Covenant War===
| | After evaluating their situation, Keyes ordered [[John-117]] to capture and interrogate the Prophet of Regret about the Installation. After fighting the Covenant in various locations, John-117 and Cortana overheard Regret talking about activating the Installation which, according to the High Prophet, would start the "Great Journey". Keyes then ordered John-117 to locate and eliminate Regret, while she and her Marines aboard the ''In Amber Clad'' proceed towards the Library of the Installation to retrieve the Index, both operations aimed to prevent the High Prophet from activating the Installation. |
| After the end of the Human-Covenant War, the [[Office of Naval Intelligence]] established [[Lisbon Station]]{{Ref/Reuse|11th}} in orbit of Installation 05; beyond the range of the ring's automated defenses.{{Ref/Reuse|universe}} The station's purpose was to study the Halo prior to its decommissioning.<ref>'''[[Halo 4]]''', campaign level ''[[Infinity (Halo 4 level)|Infinity]]''</ref> Lisbon Station is located in orbit around the ring, as the surface is considered too dangerous to house permanent settlements. The station is used as a staging point for UNSC research and artifact retrieval units. Numerous scans of the installation captured by {{UNSCShip|Coral Sea}} and ''In Amber Clad'' during the Battle of Installation 05 are now the basis of several [[War Games]] simulations utilized by the [[SPARTAN-IV program]].{{Ref/Reuse|universe}} | |
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| In [[2555#March|March 2555]], [[monitor]] [[000 Tragic Solitude]] used the contamination and later sterilization of Installation 05 as part of his justification for wiping out all life in the galaxy along with the destruction of [[Installation 04]], the damage done to [[Installation 00|the Ark]] and the destruction wrought by the firing of [[Installation 08]].{{Ref/Reuse|HITD272}}
| | After fighting hordes of Covenant forces, John-117 finally located Regret in a huge temple over a crater lake. John-117 successfully eliminated the High Prophet and proceeded to be exfiltrated. However, at the same time, the Covenant's holy city, High Charity, arrived and sent a Covenant [[CCS-class Battlecruiser]] to destroy the temple. John-117 escaped the destruction by jumping off into the crater lake, only to be captured by the Gravemind. |
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| Both the ring and the Coelest system at large were quarantined after the war, and as of [[2558]], UNSC and [[Swords of Sanghelios]] ships patrol the region.<ref name="HOSFM84">''[[Halo: Official Spartan Field Manual]]'', ''page 99''</ref>
| | === The Battle === |
| | [[File:Installation 05.jpg|thumb|right|Installation 05's firing sequence being canceled.]] |
| | {{Main|Battle of Installation 05}} |
| | After the Covenant had arrived, the [[Prophet of Truth]] ordered the [[Arbiter]] [[Thel 'Vadamee]] to go on the Installation's surface and retrieve the [[Index|sacred icon]] to enable the start of the Great Journey. On the surface, the Arbiter was tasked by the [[Chieftain of the Jiralhanae|Jiralhanae Chieftain]], [[Tartarus]], to shutdown the Sentinel Wall to allow Covenant forces to be deployed and assist the cause. |
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| At some point, unusual activity on the ring was investigated by ONI through remote surveying technology. The intelligence agency discovered strange structures that suddenly appeared on the installation's surface at key power and data junctions. ONI created War Games simulations [[Orion]] and [[Pegasus]] based off of these structures for Spartan-IVs to train in, with the intent to send these Spartans to Installation 05 to examine the structures. The Spartans were trained to deal with any possible threat from [[Aggressor Sentinel]]s, [[Promethean]] constructs, or [[Covenant remnants]] that would interfere with the investigation. It was later discovered that, around these structures, the local Aggressor Sentinels suddenly became actively hostile and organized.<ref name="canonfodder">[https://www.halowaypoint.com/en-us/news/canon-fodder-beta-late-than-never '''Halo Waypoint''': ''Canon Fodder - Beta Late Than Never'']</ref>
| | The Arbiter then proceeded beyond the Wall, only to be troubled with the Flood throughout his journey in the Quarantine Zone to the Installation's Library, and later assisted by [[Rtas 'Vadum]]ee and his officers. In the Library, the Arbiter assaulted Commander Miranda Keyes and Sgt. Johnson. After neutralizing the pair, the Arbiter retrieved the Index but was later betrayed and cast into the depths of the [[Index Chamber]] by Tartarus who acted under the orders of the High Prophets. |
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| ==Topography==
| | The Arbiter was then saved by the Gravemind from death and brought to a chamber where the Gravemind rests. Within the chamber, the Arbiter met John-117, the infected High Prophet of Regret, 2401 Penitent Tangent and the Gravemind. The five proceeded into the discussion of Halo's true purpose. Through the Installation's [[teleportation grid]], the Gravemind sent John-117 to High Charity, and the Arbiter to the Installation's Control Center, both of which to search for the Index and prevent it from activating the Halo Array. The Arbiter's presence sparked the start of the [[Great Schism]], a civil war which will soon split the Covenant into the Loyalist and the Separatist. |
| ===Environment===
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| [[File:H2A - ZenithRing.jpg|thumb|250px|The surface of the Halo.]]
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| Installation 05 has a gravity of 1.04 Gs, and an average surface temperature of -19 °C to 42 °C (-2.2 °F to 107.6 °F). The ring's atmospheric composition is 1.01 and is largely made up of [[oxygen]] and [[Wikipedia:Nitrogen|nitrogen]] gas.{{Ref/Reuse|VIS}} The controlled climate of Installation 05 is similar to that of [[Installation 04]], with varying weather conditions in different areas. Its terrain includes lakes, jungles, hills, canyons, and valleys,<ref>'''[[Halo: Broken Circle]]''', ''pages 216-218'' (Google Play edition)</ref> as well as the ice and snow-filled [[Quarantine Zone]].{{Ref/Reuse|zone}} Several hundred years prior to [[2552]], the [[Flood]] escaped the their containment on the ring. As the Flood began to spread throughout the installation, the Halo's surface was heavily altered. While the Flood was eventually contained within the Quarantine Zone, the capture of [[2401 Penitent Tangent]] prevented Installation 05's environment from being properly maintained and its flora became overgrown on numerous Forerunner facilities throughout the installation. The installation was partially [[Glassing|glassed]] by the [[Sangheili]] during the [[Battle of Installation 05]].{{Ref/Reuse|ENC glassed}}
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| The Halo's numerous dense jungles were also home to several [[Forerunner]] facilities. At least one dry desert exists on Installation 05; the desert featured a small canyon home to Forerunner outposts on either side.<ref>'''Halo 2''', multiplayer map ''[[Coagulation]]''</ref> Human scientists have theorized that the canyon was likely used by young Forerunner [[Warrior-Servant]]s that sought to demonstrate their prowess in combat arenas. During the Battle of Installation 05, [[UNSC]] surveillance unit [[RECON 127]] discovered a dormant Forerunner vessel buried beneath an island on the ring's surface which had been carefully hidden by the Forerunners.{{Ref/Reuse|universe}}
| | After navigating throughout the whole of High Charity, the ''In Amber Clad'' made a slipspace jump inside the Covenant holy city and crashed into one of the Covenant structures. It was apparent that the Flood has successfully penetrated the Covenant's defenses and managed to spread its infection throughout the whole city. Fighting his way through the Flood and Covenant forces, John-117 found himself unsuccessful in retrieving the Index. The Jiralhanae Chieftain Tartarus and the High Prophet of Truth, along with Miranda Keyes and Johnson held captive, left the site while leaving the High Prophet of Mercy being infected slowly by an Infection form. Cortana instructed John-117 to hunt down the Prophet of Truth while she begins the detonation of ''In Amber Clads'' engines to prevent the activation of Halo. |
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| ===Structure and systems===
| | At the same time, the Arbiter managed to gather enough Sangheili and Unggoy support to engage on the Jiralhanae and the Kig-yar. He met Rtas 'Vadum once again on a cliff overlooking the Control Center, with Tartarus arriving shortly at the entrance of the Control Center. The Arbiter, assisted by Rtas 'Vadum, rallied more Sangheili and Unggoy to support their operation to take over and commandeer a Scarab. The Arbiter 'rescued' Johnson from his captors and agreed to escort him in a Banshee to the Control Center. Johnson, piloting the Scarab, destroyed the entrance of the Control Center, allowing the Arbiter to enter the structure. |
| [[File:H2A - Library.jpg|thumb|250px|left|The Library of Installation 05.]]
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| Installation 05 is 10,000 kilometers (6,200 miles) in diameter and has a surface width of 318 kilometers (198 miles).{{Ref/Reuse|VIS}} Orbiting [[Substance]], it is likely the installation's location over the large ice giant is a safety measure; the Halo can be plunged into the planet's high-pressure interior if deemed necessary.<ref>'''Halo Encyclopedia: The Definitive Guide to the Halo Universe''', ''page 310'' (2011)</ref> Installation 05's orbit over Substance is maintained by energy nodes. These power conduits are used to delicately control the direction and movement of the ring over the ice giant. Until his capture by the [[Gravemind]], the installation's [[monitor]] was 2401 Penitent Tangent.{{Ref/Reuse|universe}} The [[Control Room (Installation 05)|Control Room]] of Installation 05 is the site that controls many of the installation's operations. The Control Room is used to activate the installation's firing sequence. Housing vast archive complexes and research facilities,<ref>'''Halo: The Essential Visual Guide''', ''page 108''</ref> the installation's [[Library]] also contains the local [[activation index]] in the [[index chamber]].{{Ref/Reuse|zone}} As a result of the Flood's spread, the [[Quarantine Zone]] was a perimeter established on the Halo to prevent the Flood from spreading further. The zone was surrounded by a [[Sentinel wall]], an encompassing structure that manufactured [[Sentinel]]s to either repair the facility or engage the Flood. The entire Quarantine Zone was enclosed by a [[containment shield]] projected by the Sentinel wall.{{Ref/Reuse|icon}} Additionally, Installation 05 maintains an automated defense system that partially extends to the Halo's orbit.{{Ref/Reuse|universe}}
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| [[File:H2A - Delta Halo activated.jpg|thumb|250px|Installation 05's Control Room is activated]]
| | At the same time, John-117 was sent into the Forerunner Dreadnought to follow the Prophet of Truth by Cortana using the power conduit. Cortana, left behind, faced Gravemind who had gained complete control over High Charity. Meanwhile, in space over the Installation, the [[High Charity Defense Fleet|Defense Fleet of High Charity]] commanded by Sangheili and Jiralhanae shipmasters engaged one another as a result of the expanded Civil War of the Covenant.<ref>'''[[Halo: Ghosts of Onyx]]''', ''page ??''</ref> With the threat of the Flood escaping the Installation, both sides focused a small number of their ships to the burning of any ships trying to escape Halo. |
| Installation 05 maintains a vast [[teleportation grid]] to allow individuals with the proper authority to quickly reach certain areas of the ring. The teleportation grid is sustained by a dense web of telemetry conduits, which are powered by generators buried in steep, narrow canyons throughout the installation.{{Ref/Reuse|universe}}<ref>'''Halo 2''', multiplayer map ''[[Beaver Creek]]''</ref> The surface of Installation 05 is home to numerous [[relay station]]s.{{Ref/Reuse|universe}}<ref>'''Halo 2''', multiplayer map ''[[Ascension]]''</ref> As with the other installations of the [[Halo Array]], Installation 05 hosts several [[Flood containment facility|Flood containment facilities]] scattered across the ring. These facilities were designed to analyze Flood samples kept in various states of development—beyond the firing of the Halo Array. The primary research facilities are located in remote regions of the installation, such as in a series of vast bogs and swamplands. Human analysts believe that the Forerunners placed the facilities in undesirable locations to discourage potential intruders. At least one facility specialized in determining extremophilic thresholds of specimens infected by the Flood;{{Ref/Reuse|universe}} this facility was apparently maintained by [[Unidentified ancilla (Installation 05)|an ancilla]] of its own.<ref>'''Halo 3''', multiplayer map ''[[Cold Storage]]''</ref> Prior to the Halo's activation, Forerunner [[Lifeworker]]s maintained several facilities—located in the ring's dense jungles—that were used to study an extensive collection of catalogued species during the [[Conservation Measure]]; the facilities were abandoned during the [[dark time]] that followed the [[Great Purification]].{{Ref/Reuse|universe}} Installation 05 also possessed numerous [[anti-gravity gondola]]s that allowed individuals to travel long and extensive distances.{{Ref/Reuse|regret}}
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| ===Architecture===
| | The Arbiter delayed the activation of the Installation with the help of Johnson. Impatient and unsatisfied with the hereie told by the Arbiter, Tartarus enabled the firing sequence and engaged the Arbiter. The Arbiter successfully killed the Jiralhanae Chieftain with the support of Johnson and Miranda Keyes hastily pulled the Index out of its chamber. The firing sequence was put on standby mode, ready for remote activation through [[Installation 00|the Ark]]. |
| {{Quote|You know, I think the Forerunners built these new structures around the old, to protect them, to honor them.|[[Cortana]], commenting on some of the structures on Delta Halo{{Ref/Reuse|regret}}}}
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| [[File:Ruins1600.jpg|thumb|left|250px|Ruins on Installation 05.]]
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| The architecture of structures on Installation 05 follows the general Forerunner aesthetic, but has a clearly distinct style from some other installations such as [[Installation 00]] or [[Installation 04|04]], an example being [[Control Room (Installation 05)|Installation 05's Control Room]] having similarities to [[Control Room (Installation 04)|Installation 04's Control Room]] in purpose, but with a different look—including a spherical shape at the center of the building. In addition, many structures on Installation 05, including the [[Temple (Installation 05)|temple]], appear to be more weathered than those on other installations,{{Ref/Reuse|universe}} having a slightly brown-tinted gray color as opposed to the clean, pristine silver-gray surface material of most Forerunner structures.{{Ref/Reuse|deltahalo}}{{Ref/Reuse|regret}} | |
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| Much of the decor within the structures of Installation 05 seems to be less practical and more ostentatious than that of Installation 04. Many of the rooms contain standing tables and basins that seem to serve a purely aesthetic purpose, perhaps at one time serving as lamps or torches. An island on Installation 05 is also home to a towering, weathered megalith, a structure that resembles other artifacts on the ring.{{Ref/Reuse|universe}}
| | === Aftermath === |
| | When Installation 05 was last seen, the Flood were seen having complete control over High Charity and several of the surrounding fleet. The Great Schism, a civil war between Covenant species, split the empire into Loyalist and Separatist factions. At the end of the battle, what is left of the Sangheili fleet sterilized the installation, most likely by means of [[glassing]] the surface.<ref>'''[[Halo Encyclopedia]]''', ''page ??''</ref> The [[Holography|hologram]] in the [[Citadel (Forerunner)|Citadel]] on [[Installation 00]] shows Installation 05's surface as completely barren.<ref>'''Halo 3''', campaign level ''[[The Covenant (Level)|The Covenant]]''</ref> |
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| [[File:H2 - Delta Halo towers 7.png|thumb|250px|The newer metal structures built around the older stone structures]] | | ==Locations== |
| A curious feature on Installation 05 are the stone ruins encountered on the ring. While clearly consistent with known motifs of Forerunner architecture, the ruins seem clearly older and more primitive than most Forerunner structures, and seemingly predate the construction of the ring.{{Ref/Reuse|VIS}} They are also made of stone, as opposed to the metallic material seen on the majority of Forerunner constructs (although the Forerunners are known to have favored stone as a construction material in a number of other sites as well). This brings up the question of whether these are Forerunner structures at all, or if they were built by an even more ancient civilization or the Forerunners themselves long time before the construction of the Halo installations, and later moved to the ring for unknown reasons.<ref>'''[[Halo Waypoint]]''', ''Memory Lane - [[Sanctuary]]''</ref> Some [[human]] analysts speculate that these structures were not created by the Forerunners, but were transported to the ring for other species that were temporarily housed on Installation 05 during the Conservation Measure. Certain analysts believe that some of the stone structures were intended to fulfill a cultural purpose rather than a practical one, possibly as a memorial or tomb.{{Ref/Reuse|universe}} Only a fraction of the installation's structures represent the older variety, as most of them are in a similar condition as on other known installations. Some of the newer structures were also built around the older ones to support and protect them, which is clearly evident in some of the spires built over the lake near the temple.{{Ref/Reuse|regret}}
| | *"[[Bastion of the Brutes]]" |
| {{Clear}}
| | *[[Control Room (Installation 05)|Control Room]] |
| | *[[Flood Research Facility]] |
| | *[[Library]] |
| | *[[Quarantine Zone]] |
| | *[[Sentinel Wall]] |
| | *[[Temple (Installation 05)|Temple]] |
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| ==Trivia== | | ==Trivia== |
| {{Linkbox|gallery=yes}}
| | *2401 Penitent Tangent was the first known Monitor to be captured by the Flood. |
| *There are six ''[[Halo 2]]'' campaign levels that take place on Installation 05: ''[[Delta Halo]]'', ''[[Regret (Halo 2 level)|Regret]]'', ''[[Sacred Icon]]'', ''[[Quarantine Zone]]'', ''[[Uprising]]'', and ''[[The Great Journey]]''. | | *There are six ''Halo 2'' campaign levels that take place on Installation 05; [[Delta Halo (level)|Delta Halo]], [[Regret (level)|Regret]], [[Sacred Icon]], [[Quarantine Zone (Level)|Quarantine Zone]], [[Uprising]], and [[The Great Journey]]. |
| *The ''Halo 2'' multiplayer maps set on Installation 05 include [[Ascension]], [[Backwash]], [[Desolation]], [[Lockout]], [[Relic]], [[Sanctuary]], [[Uplift]] and [[Warlock]]. The ''[[Halo 3]]'' multiplayer map [[Cold Storage]] is the only one in ''Halo 3'' to be set on Installation 05. The ''[[Halo 5: Guardians]]'' multiplayer maps [[Pegasus]] and [[Orion]] are set on Delta Halo.{{Ref/Reuse|canonfodder}} | | *The ''Halo 2'' multiplayer maps that set on Installation 05 includes [[Ascension]], [[Backwash]], [[Beaver Creek]], [[Desolation]], [[Lockout]], [[Relic (level)|Relic]], [[Sanctuary]], [[Uplift]] and [[Warlock]]. Meanwhile, the ''Halo 3'' Multiplayer map [[Cold Storage]] is the only one in ''Halo 3'' to be present on Installation 05. |
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| ==Gallery== | | ==Gallery== |
| <gallery> | | <Gallery> |
| File:H2 DeltaHalo Building Concept.jpg|Concept art for a structure on the installation.
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| File:H2 Concept DeltaStructures.png|Concept art of another structure on the installation.
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| File:Installation05S.png|The [[Forerunner symbols|Forerunner symbol]] for Installation 05.
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| File:Delta Halo.jpg|A view of Installation 05.
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| File:Halo6.jpg|A Phantom approaches Delta Halo. | | File:Halo6.jpg|A Phantom approaches Delta Halo. |
| File:PT2401.JPG|The [[monitor]] of Installation 05, [[2401 Penitent Tangent]]. | | File:Tanget.JPG|The [[Monitor]] of Installation 05, [[2401 Penitent Tangent]]. |
| File:Sacredicon1600.jpg|The Library of Installation 05. | | File:Sacredicon1600.jpg|The Library of Installation 05. |
| File:H2 Delta Halo Tank.jpg|A structure and a bridge on Installation 05. | | File:Jungle.jpg|Jungles and lakes on Installation 05. |
| File:H2 Uprising Control room building.jpg|The [[control room]] of Installation 05. | | File:Argodaemon-DeltaHaloTank-1600-1200.jpg|A structure and a bridge on Installation 05. |
| File:H2 - Delta Halo towers 1.png|A pair of towers framing older stone ruins on the lake surrounding the temple. | | File:Uprising.jpg|The [[Control Room]] of Installation 05. |
| File:QZ - battle zone 1.png|The dilapidated conditions of the installation's [[Quarantine Zone]].
| | File:Control Room3.jpg|The [[Control Room]] of Installation 05. |
| File:H2-Uprising_Eld.png|An iteration of the ubiquitous [[Forerunner symbols#Eld|Eld]] symbol found on Installation 05.
| | File:Llibraryday.jpg|The [[Library]] of Installation 05. |
| File:H2-Uprising_mural.png|A mural in a structure on the installation, identical to a design at [[Installation 04]]'s [[Silent Cartographer]]. | | File:H2 ringbirds.jpg|Birds on Delta Halo. |
| File:H2 - Delta Halo door 1.png|A baroquely ornamented [[door]] on Delta Halo.
| | File:Coldstorage1 inline.jpg|A compromised Flood containment facility. |
| File:H2 ringbirds.jpg|[[Quadwing]]s on Delta Halo. | | File:43472886-Full.jpg|Installation 05, completely overrun by the Flood. |
| File:Coldstorage1 inline.jpg|A compromised Flood containment facility deep within Installation 05. | |
| File:H3 Cold Storage out of map.jpg|A section of Installation 05 completely overrun by the Flood. | |
| File:Installation 05.jpg|Installation 05's firing sequence being canceled in ''Halo 2''.
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| File:Coelest.jpg|A measurement of [[Substance]] and Installation 05 from space. | | File:Coelest.jpg|A measurement of [[Substance]] and Installation 05 from space. |
| File:Haloverse-PlanetDistances scaled.jpg|A scaling of the distance between Substance and Installation 05 within Coelest system, along with the [[Soell system]]. | | File:Haloverse-PlanetDistances scaled.jpg|A scaling of the distance between [[Installation 04]], [[Threshold]] and its moon [[Basis]] within the [[Soell]] system at the top. And a scaling of the distance between Substance and Installation 05 within Coelest system at the bottom. |
| File:H2A - DeltaHalo Scenery.jpg|Scenery on Delta Halo from ''Halo 2: Anniversary''.
| | </Gallery> |
| File:H2A BlurRegretTemple Render 1.jpg|The temple in ''Halo 2: Anniversary''.
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| File:AerialDelta.png|Aerial view of Delta Halo temple and lake.
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| File:H2A Cutscene SanctumHaloView.png|Installation 05, as seen from the [[Sanctum of the Hierarchs]] in ''[[High Charity]]''.
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| File:LC 05 Doc2.png|Covenant readout of Installation 05.
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| </gallery> | |
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| ==List of appearances==
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| *''[[Halo 2]]'' {{1st}}
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| *''[[Halo: Ghosts of Onyx]]''
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| *''[[Halo 3]]''
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| *''[[Halo Legends]]''
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| **''[[Origins]]''
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| *''[[Halo: Combat Evolved Anniversary]]''
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| **''[[Terminal (Halo: Combat Evolved Anniversary)|Terminals]]''
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| *''[[Halo 4]]'' {{Mo}}
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| *''[[Halo: Broken Circle]]''
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| *''[[Halo 2: Anniversary]]''
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| **''[[Terminal (Halo 2: Anniversary)|Terminals]]''
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| *''[[Halo: Hunters in the Dark]]'' {{Mo}}
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| *''[[Halo: Last Light]]'' {{Im}}
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| *''[[Halo 5: Guardians]]''
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| *''[[Halo Mythos]]''
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| *''[[Halo: Age of Retribution]]''
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| ==Sources==
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| {{Ref/Sources|2}}
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| {{Forerunner|array|category=no}}
| | == Sources == |
| | <references/> |
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| [[Category:Installation 05 locations| ]] | | {{Forerunner2}} |
| [[Category:Halo Array]] | | [[Category:Halos]] |
| | [[Category:Installation 05]] |
| | [[Category:Places]] |
| | [[Category:Forerunner technology]] |
