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| {{Status|Canon}} | | {{Ratings}} |
| {{disambig header|the Halo installation|the campaign level|Delta Halo}} | | {{Era|H2|H3|GOO}} |
| {{Megastructure infobox | | {{Seealso Level|Delta Halo (Level)|[[Halo 2]]}} |
| |image=[[File:H2A - DeltaHalo.jpg|300px]] | | |
| |description=
| | {{Haloring |
| |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> | | |name = Installation 05<br>"Delta Halo" |
| |anchor=Substance/[[Opusculus]]{{Ref/Reuse|VIS}} | | |image = [[Image:Delta Halo.jpg|280px]] |
| |type=[[Halo Array|Halo installation]]
| | |Location = [[Substance]] system |
| |function=Galactic sterilization/[[Flood]] containment and research | | |Monitor = [[2401 Penitent Tangent]] |
| |caretaker=[[2401 Penitent Tangent]]<ref name="universe">[https://www.halowaypoint.com/en-us/universe/locations/delta-halo '''Halo Waypoint''': ''Delta Halo'']</ref> | | |Status = Deactivated |
| |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> | | |Date of Destruction = |
| *Deactivated from [[Installation 00]] as of December 11, 2552{{Ref/Reuse|ENC glassed}}
| | |Range = 25,000 Light-years |
| |destroyed-title=Status | | |Firing Record = 1.2 Trillion simulated, 1 Actual, 1 Firing Halted mid sequence (misfire) |
| |diameter={{Convert|10000|km|mi|sp=us}}{{Ref/Reuse|VIS}} | | |Diameter = 10,000 kilometers |
| |surface width={{Convert|318|km|mi|sp=us}}{{Ref/Reuse|VIS}}
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| |gravity=1.04 G{{Ref/Reuse|VIS}} | |
| |surface temperature=-19°C to 42°C (-2.2°F to 107.6°F){{Ref/Reuse|VIS}}
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| |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>}}
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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}} | | {{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]]}} |
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| | '''Installation 05''', or '''Delta Halo''' as it is called by [[Human]]s, is one of the seven massive [[Halo]] fortress worlds built by the [[Forerunner]]s. It is also the second Halo ring to be discovered by Humanity. |
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| | == Details == |
| | '''Planet of Orbit:''' [[Substance]] |
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| | '''[[Monitor]]:''' [[2401 Penitent Tangent]] |
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| | What happened to Installation 05 after the events of [[Halo 2]] and [[Halo: Ghosts of Onyx]] is unknown. From the holograms present in the [[Ark]]'s [[Control Room]] it is known that the installation is intact but nothing else can be derived from this. The heavy damage done to [[The Ark]] could have put the Halo out of standby, or it could be unaware of the Ark's status, and still be awaiting remote activation. Its buildings seem to be more 'ancient' looking than Installation 04. |
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| | [[Image:Ruins1600.jpg|thumb|right|200px|Ruins on Installation 05.]] |
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| | The ageing of it could be due to the damage the [[Flood]] has done to it as well as the battles that take place, hinting that this is where the majority, or the most intense of the Forerunner/Flood battles took place. It is also possible, that each Halo, while similar in architecture (I.E angular design, and same basic functional structures), has a different style from the next, an example being 05's [[Control Room]] having similarity to 04's Control Room in purpose, but with a new 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. However, a combination of this, and the weathering caused by battles with the Flood could be why Delta Halo's structures look so dissimilar. Structures constructed out of the same material as the [[Temple (Installation 05)|Temple]] in the lake seem to be more resistant to the elements, as the only damage is slightly scuffed up surfaces. Otherwise, they are flawless. |
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| | The Installation may be smaller than [[Alpha Halo]], described as being the size of a moon<ref>''[[Halo: Ghosts of Onyx]]'', pg. 188</ref>, rather than a planet, although the relevance of this is unknown. Whether this theorized size difference is common among Halo installations, or whether Installation 05 represents a different Halo Installation model to Installation 04, is unknown. Its should also be noted that it is unclear what the size of the moon the halo is being compared with, as [[Threshold]]'s moon, [[Basis]], was about 3 times the size of [[Earth]], and Installation 04 was slightly smaller than Earth's diameter. |
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| | Its terrain, with the exception of the ice and snow-filled [[Quarantine Zone]], is mostly lakes and jungle. |
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| | == 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.|[[Gravemind]]}} |
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| | It is assumed that Installation 05 was built around the same time as [[Installation 04]], circa 100,000 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. As of [[2552]], it had a record of 1.2 trillion simulated firings and one actual activation. |
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| | === Flood Disaster === |
| | [[Image:Sacredicon1600.jpg|thumb|right|220px|The Library at the time of the Flood infestation.]] |
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| | About 200 years prior to [[2552]], the [[Flood]] on Installation 05 escaped and evaded containment due to negligence on the part of the installation's Monitor, Penitent Tangent. <ref>Cold Storage</ref> The [[Flood]] quickly grew out of control around the area of the Installation's [[Library]]. 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 horrible conditions, and most of the Installation came to look like a jungle strewn with ruins. |
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| | At the time of the [[Human-Covenant War]], a Gravemind 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. A battle record has been shown on Bungie.net: |
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| | {{scroll box |
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| | REPORT: CONTAINMENT FAILURE |
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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}}
| | LF.Xx.3273 research and containment facility; [delta site] has experienced catastrophic specimen containment failure. All apertures into facility will be locked until further notice. Atmosphere evacuation and [reduction of ambient temperature] protocols have already been enacted. Request maintenance and security detail [at earliest opportunity]. [8 minutes] elapsed since initial containment failure. |
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| | REPORT: CONTAINMENT FAILURE |
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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}}
| | Waiting for maintenance and security detail. [32 minutes, 9 seconds] elapsed since request. |
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| | REPORT: CONTAINMENT FAILURE |
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| ==History==
| | Still waiting for maintenance and security detail. [24 hours] elapsed since request. |
| ===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}}}}
| | REPORT: SECURITY BREACH |
| 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===
| | LF.Xx.3273 research and containment facility; [delta site] has experienced a security breach via emergency [slip stream space] transportation conduits. Emergency [slip stream space] transportation conduits have been placed in recursive mode to contain unauthorized hostile life forms. Request emergency security detail. Still waiting for primary maintenance and security detail. [2512332 hours, 14 minutes, 6 seconds]elapsed since initial request. |
| [[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}}
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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}}
| | REPORT: DERELICTION OF DUTY |
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| ===Discovery and conflict===
| | 2401 [PENITENT TANGENT] has been lax in the areas of maintenance and security. |
| {{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.]] | |
| 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.]]
| | LOG: QUERIED ADJACENT FACILITIES |
| 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}}
| | LF.Xx.3273 research and containment facility [alpha, beta, gamma, epsilon, zeta, and kappa sites] have all replied [systems normal] within expected constraints. This would tend to signify that the containment failure was purely mechanical in nature; perhaps a manufacturing flaw. As no [outside agent] has accessed [delta site] in the past [874068942 hours, 4 minutes, 46 seconds]—[allowing for a 61360 hour, 54, minute, 2 second margin of error]—sabotage would seem unlikely. |
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| [[File:H2A - Battle of Delta Halo.jpg|thumb|250px|left|The firing of the installation is averted.]]
| | LOG: REQUEST UNANSWERED |
| 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>
| | LF.Xx.3273 research and containment facility; [delta site] is currently being held at [.01 atm] / [184K]. Local maintenance and security hubs have failed to reply within expected constraints. [Bumping maintenance and security request up] to [quadrant oversight]. |
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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>
| | LOG: REQUEST UNANSWERED |
| | LF.Xx.3273 research and containment facility; [delta site] is currently being held at [1 atm] / [278K] as atmospheric seals were showing signs of stress. [Quadrant oversight] has failed to reply within expected constraints. [Bumping maintenance and security request all the way up] to 2401 [PENITENT TANGENT]. |
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| ===Post-Covenant War===
| | LOG: UNAUTHORIZED ACCESS TO FACILITIES |
| 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}}
| | LF.Xx.3273 research and containment facility; [delta site] emergency [slip stream space] transportation conduits have been accessed by unauthorized parties. |
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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}}
| | LOG: FILED COMPLAINT TO INSTALLATION 00 |
| | 2401 [PENITENT TANGENT], monitor of Installation 05, has been lax in the areas of maintenance and security. Requests for aid in said areas have gone unanswered by both 2401 and [subservient] systems well beyond expected constraints. |
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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>
| | === Discovery === |
| | In [[2552]], the [[High Prophet of Regret]], a [[Covenant]] [[High Prophets|Hierarch]], discovered the location of Installation 05 during [[The First Battle of Earth]]. He made a [[Slipspace]] jump from [[Earth]] to the Halo, followed closely by [[Miranda Keyes]]' ship ''[[UNSC In Amber Clad]]''. |
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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>
| | [[Image:Discovery.jpg|right|thumb|The discovery of Installation 05.]] |
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| ==Topography==
| | When they arrived, [[Commander (UNSC)|Commander]] Keyes ordered the [[Master Chief]] to capture the Prophet of Regret. After fighting the Covenant in various temples and structures, the Master Chief and [[Cortana]] overheard Regret talking about activating the ring, which according to him, would start the "Great Journey." Miranda Keyes ordered the Chief and Cortana to find and kill Regret, while she and her Marines on board ''In Amber Clad'' went to the Library to retrieve the Index. |
| ===Environment===
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| [[File:H2A - ZenithRing.jpg|thumb|250px|The surface of the Halo.]] | |
| 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}} | | The Master Chief fought through waves of [[Covenant]] enemies onboard gondolas, through underwater structures, and more mysterious structures until he finally located Regret in a huge temple over the lake and killed him just as the Covenant city ''[[High Charity]]'' arrived with hundreds, possibly thousands of ships. One ship destroyed the Prophet of Regret's temple, which caused the Master Chief to fall into the lake and ultimately be captured by the [[Gravemind]]. |
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| ===Structure and systems=== | | === The Battle === |
| [[File:H2A - Library.jpg|thumb|250px|left|The Library of Installation 05.]]
| | {{Main|Battle of Installation 05}} |
| 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]]
| | After the Covenant had arrived, the [[Prophet of Truth]] ordered [[Thel 'Vadamee]] to go on Halo's surface and retrieve the [[Sacred Icon]] to enable the start of the Great Journey. The Arbiter, after fighting waves of [[Sentinel]]s and a large [[Enforcer]], finally deactivated the [[Sentinel Wall]] in order to retrieve the [[Index]]. |
| 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 Flood escaped, and were able to attack and infect much of the Human and Covenant forces on the ring, even taking control of the ''In Amber Clad'' and eventually ''High Charity''. After fighting the Flood with the help of Rtas 'Vadumee, who had been sent into the Quarantine Zone beforehand, the [[Thel 'Vadamee|Arbiter]] entered the Library. He found Miranda Keyes and Sgt. Johnson in the Index Chamber, and after neutralizing the pair, the Arbiter managed to retrieve the [[Index]], believing it necessary to begin the [[Great Journey]]. |
| {{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}}
| | [[Tartarus]], the Chieftain of the [[Brute]]s arrived in the Index Chamber, and told the Arbiter of the Prophet's betrayal. Tartarus used a gravity pulse from his Gravity Hammer to throw the Arbiter off the edge of the platform, and Tartarus then took the Icon, Miranda Keyes, and Sgt. Johnson to the Prophets. The Arbiter fell into the chamber of the Gravemind, where he met the [[Master Chief]], [[2401 Penitent Tangent]], a [[Prophet Form]] of [[Prophet of Regret|Regret]] and the [[Gravemind]]. |
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| [[File:H2 - Delta Halo towers 7.png|thumb|250px|The newer metal structures built around the older stone structures]]
| | There they "edified" him of the true nature of the Installation. The Gravemind sent the Master Chief to High Charity in search of the Index, and the Arbiter to a location on the ring near the Control Center. By that time, Tartarus had brought the Index to the Halo's [[Control Room]]. The Master Chief fought through waves of fighting Brutes and Elites in [[High Charity]] until he and [[Cortana]] witnessed the flood-infected UNSC ''In Amber Clad'' arrive from Slipspace into the city, where it then crashed into a tower. The Chief continued through the city, until he reached a climatic battle in the Mausoleum of the Arbiter where large groups of Brutes and Elites were fighting. He neutralized both sides, and continued in pursuit of the [[Prophet of Truth]] and the Index. |
| 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}}
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| {{Clear}}
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| ==Trivia==
| | [[Image:Installation 05.jpg|thumb|right|Installation 05's firing sequence being canceled.]] |
| {{Linkbox|gallery=yes}}
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| *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]]''.
| | Meanwhile, the Arbiter had helped support a group of besieged and betrayed Elites against the Brutes. The group of Elites and Grunts fought through a sequence of buildings and forests until the Arbiter arrived on a cliff overlooking the Control Center, where he met [[Rtas 'Vadumee]]. |
| *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}}
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| | Tartarus, with the unwilling help of his captive, Miranda Keyes, prepared to activate the Installation while the Arbiter rescued Johnson and helped commandeer a Scarab. He escorted the [[Scarab]] to the Control Center in a [[Banshee]], where it destroyed the doors, enabling the Arbiter to slip inside. After the Arbiter battled Tartarus and killed him, Miranda Keyes removed the Index from the chamber, canceling the firing sequence. However, the installation had a fail-safe protocol which activated and sent superluminal signals to the other Halos, putting them on standby mode, ready for remote activation through [[The Ark]].<ref>[http://www.halo3.com http://www.halo3.com] Story section</ref> |
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| | Meanwhile, in space above the Installation, the Brute and Elite fleets had been fighting ever since Regret's assassination.<ref>''Halo: Ghosts of Onyx</ref> With the threat of the [[Flood]] escaping Halo, both sides focused a small number of their ships to the burning of any ships trying to escape Halo. By the time Tartarus had been killed, Delta Halo was under Separatist control and the Prophet of [[Truth]] had escaped the completely Flood-infected High Charity in the [[Forerunner]] [[Dreadnought]], with the [[Master Chief]] inside. |
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| | === Aftermath === |
| | When Installation 05 was last seen, [[Flood]] were running loose as well as in ''High Charity'' and the surrounding Fleet. The Flood appeared to have been in control of the Installation and ''High Charity'', as the [[Civil War of the Covenant]] had caused fighting between the remaining Covenant forces on the ring. The extent of the [[Flood]] control of Delta Halo after the events of [[Halo 2]] and [[Halo: Ghosts of Onyx]] is unknown, since they were never known to be eradicated. With the [[Gravemind]] killed at the end of Halo 3, it is most likely that the Flood reverted to their original feral and disorganized state and would be easily controlled by the Sentinels and Covenant forces present there. It is not certain due to the unknown fate of [[2401 Penitent Tangent]]. The [[UNSC]] [[AI]] [[Cortana]] had suggested that the Installation be destroyed via the use of a [[NOVA Bomb]], but it is unknown if the idea was ever followed or if it succeeded (The Delta Halo is shown intact during the level [[The Covenant (Level)|The Covenant)]]).<ref>[[Halo: Ghosts of Onyx]], Page 183 (''"Additional: Suggest FLEETCOM Nova-bomb the Delta Halo system to counter the imminent biological threat."'')</ref> |
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| | == Astronomy == |
| | :''See full article:'' [[The Halos#Astronomy|The Halos]] |
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| | The "Ringworld" of Halo is much smaller than [[Wikipedia:Larry Niven|Larry Niven's]] [[Wikipedia:Ringworld|Ringworld]], by a magnitude of 300,000. While the diameter of Niven's ringworld is close to the diameter of [[Earth]]'s orbital of 300,000,000 km, the 10,000 km diameter of Halo is much closer to the diameter of [[Earth]] itself, which is 12,756 km. The Ringworld has a star similar to our sun in its center, and Halo is orbiting a planet, but does not encircle it. |
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| ==Gallery== | | ==Gallery== |
| <gallery> | | <Gallery> |
| File:H2 DeltaHalo Building Concept.jpg|Concept art for a structure on the installation.
| | Image:Tanget.JPG|The [[Monitor]] of Installation 05, [[2401 Penitent Tangent]]. |
| File:H2 Concept DeltaStructures.png|Concept art of another structure on the installation.
| | Image:Jungle.jpg|Jungles and lakes on Installation 05. |
| File:Installation05S.png|The [[Forerunner symbols|Forerunner symbol]] for Installation 05.
| | Image:Argodaemon-DeltaHaloTank-1600-1200.jpg|A structure and a bridge on Installation 05. |
| File:Delta Halo.jpg|A view of Installation 05.
| | Image:Uprising.jpg|The [[Control Room]] of Installation 05. |
| File:Halo6.jpg|A Phantom approaches Delta Halo.
| | Image:Control Room3.jpg|The [[Control Room]] of Installation 05. |
| File:PT2401.JPG|The [[monitor]] of Installation 05, [[2401 Penitent Tangent]].
| | Image:Llibraryday.jpg|The [[Library]] of Installation 05. |
| File:Sacredicon1600.jpg|The Library of Installation 05.
| | Image:H2 ringbirds.jpg|Birds on Delta Halo. |
| File:H2 Delta Halo Tank.jpg|A structure and a bridge on Installation 05.
| | </Gallery> |
| File:H2 Uprising Control room building.jpg|The [[control room]] of Installation 05.
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| File:H2 - Delta Halo towers 1.png|A pair of towers framing older stone ruins on the lake surrounding the temple.
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| File:QZ - battle zone 1.png|The dilapidated conditions of the installation's [[Quarantine Zone]].
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| File:H2-Uprising_Eld.png|An iteration of the ubiquitous [[Forerunner symbols#Eld|Eld]] symbol found on Installation 05.
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| File:H2-Uprising_mural.png|A mural in a structure on the installation, identical to a design at [[Installation 04]]'s [[Silent Cartographer]].
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| File:H2 - Delta Halo door 1.png|A baroquely ornamented [[door]] on Delta Halo.
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| File:H2 ringbirds.jpg|[[Quadwing]]s on Delta Halo.
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| File:Coldstorage1 inline.jpg|A compromised Flood containment facility deep within Installation 05.
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| File:H3 Cold Storage out of map.jpg|A section of Installation 05 completely overrun by the Flood.
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| 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.
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| File:Haloverse-PlanetDistances scaled.jpg|A scaling of the distance between Substance and Installation 05 within Coelest system, along with the [[Soell system]].
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| File:H2A - DeltaHalo Scenery.jpg|Scenery on Delta Halo from ''Halo 2: Anniversary''.
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| 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== | | ==Trivia== |
| *''[[Halo 2]]'' {{1st}} | | *2401 Penitent Tangent was the first known Monitor to be captured by the [[Flood]]. |
| *''[[Halo: Ghosts of Onyx]]'' | | *The [[Halo 3]] Multiplayer map [[Cold Storage]] is present on Installation 05. |
| *''[[Halo 3]]''
| | *There are six [[Halo 2]] levels that take place on Installation 05; [[Delta Halo (Level)|Delta Halo]], [[Regret (Level)|Regret]], [[Sacred Icon (Level)|Sacred Icon]], [[Quarantine Zone (Level)|Quarantine Zone]], [[Uprising (Level)|Uprising]], and [[Great Journey (Level)|Great Journey]]. |
| *''[[Halo Legends]]'' | | *It is unclear why Installation 05 is referred to as "Delta Halo" by human forces. Considering [[Installation 04]] is given the moniker "Alpha Halo," a more appropriate name, as it was the second such installation to be found by humanity, would have been "Bravo Halo" or "Beta Halo"; the other set of bypassed names is "Charlie Halo" and "Gamma Halo" respectively. However, it could be because Alpha and Delta are the only 2 letters from the NATO Phonetic Alphabet which are also in the Greek alphabet. |
| **''[[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}} | |
| *''[[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}}
| | == References == |
| | <references/> |
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| [[Category:Installation 05 locations| ]] | | {{Forerunner2}} |
| [[Category:Halo Array]] | | [[Category:The Forerunner]] |
| | [[Category:Halos]] |
| | [[Category:Technology]] |
| | [[Category:Installation 05]] |
| | [[Category:Places]] |
