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{{Era|Forerunner|HCW|Post}}
{{Status|Canon}}
{{Megastructure infobox
{{Megastructure infobox
|image=[[File:H4-GammaHaloInst03-ScanScreen.jpg|300px]]
|image=[[File:H4-Composer-GammaHalo-Ring.jpg|300px]]
|description=Deserts and volcanic activity for terrain<ref name="enc">'''[[Halo Encyclopedia]]''', ''page 174''</ref>
|description=Deserts, jungles, and volcanic terrain<ref name="enc">'''[[Halo Encyclopedia (2009 edition)]]''', ''page 174''</ref>
|location=Within the [[Milky Way]]
|location=[[Khaphrae system]],<ref name="H4EVG">'''[[Halo 4: The Essential Visual Guide]]'''</ref> [[Scutum-Centaurus Arm]],<ref name="warfleet">''[[Halo: Warfleet]]'', p. 13</ref> [[Milky Way]] {{C|formerly}}
|anchor=
|anchor=[[Doavyn]]{{Ref/Book|Id=Enc22P348|Enc22|Page=348}} {{C|formerly}}
|type=[[Halo Array|Halo installation]]
|type=[[Halo Array|Halo installation]]
|function=Galactic sterilization/Flood containment and research
|function=*Galactic sterilization<ref name="halo array">[https://www.halowaypoint.com/en-us/universe/tech/halo-array '''Halo Waypoint''': ''Halo Array'']</ref>
|caretaker=[[049 Abject Testament]]<ref name="Terminal">'''Halo: Combat Evolved Anniversary''', ''[[Terminal/Halo: Combat Evolved Anniversary#Terminal 2|Terminal 2]]''</ref>
*[[Flood]] containment and research{{Ref/Reuse|halo array}}
|constructed=Before c. [[100,000 BCE]]
|caretaker=[[Monitor]] [[049 Abject Testament]]<ref name="Terminal">'''Halo: Combat Evolved Anniversary''', ''[[Terminal (Halo: Combat Evolved Anniversary)#Terminal 2|Terminal 2]]''</ref>
|destroyed=*Deactivated from [[Installation 00]]<br/>
|constructed=c. [[97,445 BCE]]{{Ref/Reuse|halo array}}
*Secured by [[United Nations Space Command|UNSC]]
|destroyed=Deactivated from [[Installation 00]]<ref name="hitd262">'''[[Halo: Hunters in the Dark]]''', ''pages 262-264'' (Google Play edition)</ref>
*Previously secured by [[United Nations Space Command|UNSC]]
*Unknown. Last seen in the possession of monitor [[859 Static Carillon]]
|destroyed-title=Status
|destroyed-title=Status
|diameter=
|diameter={{Convert|10000|km|mi|sp=us}}<ref name="universe">[https://www.halowaypoint.com/en-us/universe/locations/gamma-halo '''Halo Waypoint''': ''Gamma Halo'']</ref>
|surface width=
|surface width={{Convert|318|km|mi|sp=us}}<ref name="halo array">[https://www.halowaypoint.com/en-us/universe/tech/halo-array '''Halo Waypoint''': ''Halo Array'']</ref>
|gravity=
|gravity=1.1 G{{Ref/Reuse|universe}}
|surface temperature=
|surface temperature=-21°C to 43°C (-6°F to 109°F){{Ref/Reuse|universe}}
|atmosphere=
|atmosphere=1.02 ([[Wikipedia:Nitrogen|N<sub>2</sub>]], [[Oxygen|O<sub>2</sub>]], [[Argon|Ar]]){{Ref/Reuse|universe}}
|hidec=yes
}}
}}
'''Installation 03''', also known as '''Gamma Halo''',<ref name="Composer">'''Halo 4''', ''Composer'' ([[Halo 4 audio logs|audio log]])</ref><ref name="11h">''[[Eleventh Hour reports]] - #5''</ref><ref group="note">In [[:File:H3 halo inner ring title.PNG|''Halo 3'''s texture files]], Installation 03 is named "Eta Halo", while the designation "Gamma Halo" is given to [[Installation 06]]. This is contradicted by one of the [[Halo 4 audio logs|audio logs]] in ''Halo 4'', (as well as the [[Eleventh Hour reports]]), which identify Installation 03 as "Gamma Halo". Since the name assigned to the ring in ''Halo 4'' is conveyed in released media, it is considered to override the previous designation, which was never seen outside ''Halo 3'''s files.</ref> is one of the [[List of "seven" references in the Halo series|seven]] rings in the [[Halo Array]]. Its [[monitor]] is [[049 Abject Testament]].<ref name="Terminal"/> The ring appears to have a red and cracked surface, indicating the presence of vast deserts, as well as volcanic activity.<ref name="enc"/>


Unlike [[Installation 04|Installations 04]] and [[Installation 05|05]], which orbit large gas giants, Installation 03 orbits a rocky planet, the face of which has been shattered as a result of a fairly recent impact event; the debris from the impact, still aglow as of [[2557]], has collected to form a dense [[asteroid]] field in orbit over the planet as well as the Halo.<ref name="composer">'''Halo 4''', ''[[Composer (level)|Composer]]''</ref>
'''Installation 03''', also known as '''Gamma Halo''',<ref name="Composer">'''Halo 4''', ''Composer'' ([[Audio log (Halo 4)|audio log]])</ref><ref name="11h">''[[Eleventh Hour reports]] - #5''</ref> is one of the [[seven]] ring-shaped superweapons that comprise the [[Forerunner]]s' [[Halo Array]]. Located in orbit of [[Doavyn]] in the [[Khaphrae system]] in the [[Scutum-Centaurus Arm]] of the [[Milky Way]] galaxy,{{Ref/Reuse|warfleet}}{{Ref/Reuse|Enc22P348}} Installation 03's [[monitor]] is [[049 Abject Testament]].{{Ref/Reuse|Terminal}} The ring appears to have a red and cracked surface, indicating the presence of vast deserts and volcanic activity, but it also features jungles.{{Ref/Reuse|enc}}
 
Although Installation 03 was originally anchored in orbit around a gas giant for the firing of the Array, by the time of its discovery by humanity in the twenty-sixth century, it orbited a rocky planet, the face of which had been shattered as a result of a fairly recent impact event; the debris from the impact, still aglow as of [[2557]], has collected to form a dense [[asteroid]] field in orbit over the planet as well as the Halo.<ref name="composer">'''Halo 4''', ''[[Composer (level)|Composer]]''</ref>


==History==
==History==
===Forerunner-Flood war===
===Construction and early history===
Shortly before the activation of the Halo Array at the end of the [[Forerunner-Flood war]], the [[IsoDidact]] convened a meeting of the surviving [[Lifeworker]]s and the monitors who would serve as the rings' caretakers at [[Installation 00]].<ref>''Halo: Silentium''</ref> [[049 Abject Testament]] was designated as Gamma Halo's monitor and was given the Halo's [[activation index]].<ref>'''[[Halo: Combat Evolved Anniversary]]''', ''[[Terminal/Halo: Combat Evolved Anniversary|Terminal 2]]''</ref> Along with the other six rings, Installation 03 was fired, killing all sentient life within its effective radius. Afterwards, it entered an inactive state along with the rest of the Array.
The [[Forerunner]]s had Installation 03 constructed by the [[Foundry]] of [[Installation 00]]<ref name="p371">'''[[Halo: Primordium]]''', ''page 371''</ref> approximately around the same time as the rest of the [[Halo Array]], circa [[97,445 BCE]] during the [[Forerunner-Flood war]].{{Ref/Reuse|halo array}}<ref>[https://www.halowaypoint.com/en-us/news/canon-fodder-array-with-words '''Halo Waypoint''': ''Canon Fodder - Array With Words'']</ref> The array was designed by the Forerunner [[Builder]]s to combat the parasitic [[Flood]] by eradicating them and all [[Sentience|sentient]] life in the [[Milky Way]]. After the rings were built, Installation 03 and its fellow Halos were distributed from Installation 00 to positions across the galaxy through [[slipstream space]] [[Slipspace portal|portals]],{{Ref/Reuse|halo array}}<ref>'''[[Halo Legends]]''', ''[[Origins]]''</ref> with Installation 03 itself being placed in orbit over [[Doavyn]].{{Ref/Reuse|Enc22P348}} Afterwards, the Halo Array was [[Great Purification|fired]] and eradicated all sentient life from the galaxy. The Forerunners proceeded to [[Reintroduction|reseed]] the galaxy with life from the species that were [[Conservation Measure|preserved]] on the Halo installations. Like its fellow installations, Installation 03 became home to dormant specimens of the Flood that were intended to be used to help find a cure to the parasite in the future. With the Flood defeated, the surviving Forerunners exiled themselves from the galaxy.{{Ref/Reuse|halo array}}
 
Several centuries before its discovery by [[humanity]], Doavyn experienced a mysterious cataclysmic event of unknown origin. This event resulted in the shattering of the planet, with large chunks of it exploding into space and becoming caught in orbit in the form of an asteroid field. During the cataclysm, Installation 03 suffered extraordinary damage and its [[monitor]], [[049 Abject Testament]], went missing around the same time. Since the event, however, the Halo underwent significant repairs and had been returned to a habitable state.{{Ref/Reuse|Enc22P348}}


===Human-Covenant War===
===Human-Covenant War===
====Discovery====
{{Quote|Fail-safe protocol: In the event of unexpected shutdown, the entire system will move to standby status. All remaining platforms are now ready for remote activation.|[[343 Guilty Spark]], after the Halo Array is placed into standby mode<ref name="great journey">'''[[Halo 2]]''', campaign level, ''[[The Great Journey]]''</ref>}}
During the [[Battle of Tribute]] in [[2552#August|August 2552]], the freighter ''[[Floral Express]]'' fled the planet while carrying colonial refugees. Presumably following a random [[slipspace]] trajectory per the [[Cole Protocol]], the ship arrived near Installation 03 on [[2552#October|October 8th]]. Based on intelligence gleaned from the [[Battle of Installation 04]], ONI teams had established and enacted neutralization protocols on Gamma Halo by October 25th.<ref name="11h"/>
During the [[Battle of Tribute]] in [[2552#August|August 2552]], the freighter ''[[Floral Express]]'' fled the planet while carrying colonial refugees. Following a random [[slipspace]] trajectory per the [[Cole Protocol]], the ship arrived near Installation 03 on [[2552#October|October 8]]. Upon returning to Earth, the crew was detained by the [[Office of Naval Intelligence]] for possible violations of the Cole Protocol. After examining ''Express''<nowiki>'</nowiki>s flight records, based on intelligence gleaned from the [[Battle of Installation 04]], ONI contacted and redirected pioneer teams to the Khaphrae system.{{Ref/Reuse|11h}} Soon after confirming it was Installation 03, the teams attempted to find and secure the installation's [[Library]] to recover the [[activation index]] as part of neutralization protocols established by [[2552#October|October 25]]. Since Earth was [[Battle of Earth|under attack]] at the time, the teams could not return home, and they did not have the force of arms to remain on the ring, the teams settled in for a long habitation in a makeshift orbital base which they named [[Ivanoff Station]].<ref name="mythos">'''[[Halo Mythos]]''', ''page 164''</ref>
 
On [[2552#November|November 3, 2552]], during the [[Battle of Installation 05|Battle]] of [[Installation 05]], [[Chieftain of the Jiralhanae|Chieftain]] [[Tartarus]] of the [[Covenant]] activated Installation 05, though [[United Nations Space Command]] and [[Sangheili]] forces managed to terminate the firing sequence before the Halo could fire. As per fail-safe protocol in the event of an unexpected shutdown, a signal was sent to Installation 03 and the rest of the Halos from Installation 05, placing all Halos of the array on standby mode, ready for remote activation from Installation 00. A readout from Installation 05's [[Control Room|control room]] showed that Installation 03 was fully prepared to fire on demand.{{Ref/Reuse|enc}}{{Ref/Reuse|great journey}}
 
However, during the [[Battle of Installation 00]] on [[2552#December|December 11, 2552]], the UNSC and allied Sangheili forces fought to prevent the Covenant from firing the Halo Array from the Ark, as Installation 03 and its fellow Halos were still in standby mode and was prepared to receive the signal to fire. Eventually, [[Master Chief Petty Officer]] [[John-117]] succeeded in deactivating Installation 03, as well as the rest of the array, before it could be fired.<ref>'''[[Halo 3]]''', campaign level, ''[[The Covenant]]''</ref>
 
===Post-Covenant War===
Shortly after the end of the war Ivanoff was expanded into a permanent UNSC facility.{{Ref/Reuse|mythos}} In [[2553|March 2553]], Dr. [[Catherine Halsey]] was indefinitely detained there by [[Admiral]] [[Margaret Parangosky]], CINCONI, as retribution for lying to the admiral about the creation and deployment of [[flash clone]]s during the SPARTAN-II program's early phases.<ref>'''Halo: Glasslands''', ''page 341''</ref> [[Spartan Operations|Spartan]] teams were deployed to reconnoiter the surface, to quarantine areas of potential [[Flood]] contamination, and to recovery any notable Forerunner artifacts.{{Ref/Reuse|H4EVG}} The [[PIONEER-class Mjolnir]] variant first saw field use during these exploratory deployments.<ref>'''Halo 4''', ''Pioneer armor/specialization description''</ref>
 
In [[2555#March|March of 2555]], [[monitor]] [[000 Tragic Solitude]] of Installation 00 utilized [[Bobby Kodiak|a captured human]] to activate the Halo Array's firing sequence, triggering a countdown set for the Halos firing in five weeks from [[2555#March|March 8, 2555]].<ref>'''Halo: Hunters in the Dark''', ''pages 39-42'' (Google Play edition)</ref> After discovering the countdown on [[Installation 07]], the UNSC and [[Swords of Sanghelios]] launched a [[Operation: FAR STORM|joint operation]] to Installation 00 in which a team destroyed Tragic Solitude and ended the Halo Array's firing sequence.{{Ref/Reuse|hitd262}}


====Standby and deactivation====
===The Composer===
[[File:Installation03.jpg|thumb|right|200px|Hologram of Installation 03 seen on Installation 00]]
{{Quote|Even now, your kind tinkers with the Composer in the shadow of the third ring. Children and fire, who disregard the welfare of the galaxy.|The Ur-Didact about the human activities in and around Gamma Halo.<ref>'''Halo 4''', campaign level ''[[Shutdown]]''</ref>}}
On [[2552#November|November 3, 2552]] during the [[Battle of Installation 05]], a signal was sent to this Halo from [[Installation 05]], putting it on standby mode and preparing it to fire on demand.<ref>'''Halo 2''', campaign level ''[[The Great Journey]]''</ref> On [[2552#December|December 11, 2552]], the installation was still in standby mode and was about to be fired at the behest of the [[Prophet of Truth|High Prophet of Truth]], who had seized [[Installation 00]]'s [[control room]]. However, the Array was deactivated by [[SPARTAN-II Program|Spartan]] [[John-117]] and the [[Hierarch]] was assassinated by [[Arbiter]] [[Thel 'Vadam]] before this could occur.<ref>'''Halo 3''', campaign level ''[[The Covenant]]''</ref>
[[File:HM-Composer extraction final.jpg|thumb|left|250px|The Composer being extracted from the surface of Installation 03 by the {{UNSCShip|Infinity}}.]]
The ONI science teams retrieved various artifacts from the surface of Installation 03 and brought them on Ivanoff Station for study, including the installation's [[activation index]], a [[war sphinx]]'s "eye",<ref name="canonfodder">[https://www.halowaypoint.com/en-us/news/canon-fodder-have-s-moa '''Halo Waypoint''': ''Canon Fodder: Have S'moa'']</ref> and a [[Composer]]. An accident with the Composer killed the team researching the device; however, it provided coordinates which led the {{UNSCShip|Infinity}} to the [[shield world]] known as [[Requiem]]. When the [[Ur-Didact]] was awakened, he traveled to Ivanoff in his ship ''[[Mantle's Approach]]'' and [[Raid on Ivanoff Station|acquired the Composer]] on [[2557#July|July 24, 2557]], using it to digitize Ivanoff's staff before jumping into slipspace to travel to [[Earth]] to use the recovered weapon on humanity's homeworld.{{Ref/Reuse|composer}} However, SPARTAN-117 and Cortana followed the Didact into slipspace in an [[F-41 Broadsword]] in hopes of foiling his plan, ultimately defeating him.<ref>'''Halo 4''', campaign level ''[[Midnight]]''</ref>


===Post-war===
By the time of the Didact's attack, [[SPARTAN-II]] [[Black Team]] had been assigned to Gamma Halo,<ref>[https://forums.halowaypoint.com/yaf_postsm2963929_Catalog-Interaction.aspx#post2963929 '''Halo Waypoint''': ''Catalog Interaction'']</ref> along with a research attaché. The science team established a camp in one of the Halo's deserts. On July 25, Team Black and the scientists were killed by the Didact and his Promethean machines, who had been flung to the Halo through a slipspace portal aboard ''Mantle's Approach'' during the [[New Phoenix Incident]]. Around the same time, [[859 Static Carillon]], the monitor of the [[Composer's Forge]], attempted to contact Gamma Halo's monitor after a service portal between the Halo and the Composer's Forge was reopened. Receiving no response, Static Carillon traveled through the portal to the [[Composer's Abyss]] on Installation 03, where he encountered the Didact. At the Promethean's request, the monitor led him to the portal to the Composer's Forge, on the condition that the Didact would not use the Composers to create more [[Promethean Knight]]s, as Static Carillon considered the constructs "abominations".<ref name="HE9">'''[[Halo: Escalation]]''', ''[[Halo: Escalation Issue 9|Issue #9]]''</ref>
By [[2553|March 2553]], the top-secret research station ''[[Ivanoff]]'' had been built in Installation 03's orbit. That month, Dr. [[Catherine Halsey]] was indefinitely detained there by [[Admiral]] [[Margaret Parangosky]], CINCONI, as retribution for lying to the latter about the creation and deployment of [[flash clone]]s during the SPARTAN-II program's early phases.<ref>'''Halo: Glasslands''', ''page 341''</ref> The [[MJOLNIR Powered Assault Armor/Pioneer|MJOLNIR/Pioneer]] variant first saw field use during the initial ground exploration of Installation 03.<ref>'''Halo 4''', ''Pioneer armor/specialization description''</ref>
{{clear}}
====Actions in the jungle====
[[File:HE Installation 03.jpg|thumb|100px|A section of Installation 03 is ejected toward the [[Composer's Forge]].]]
{{Main|Battle of Installation 03}}
During these events, [[Jul 'Mdama's Covenant|Covenant forces]] landed in a jungled region of Gamma Halo where they took the artifact known as the [[Conduit]] to a Forerunner structure they termed the [[Altar]] in order to open [[slipspace portal]]s all over Gamma Halo and take control of the ring. One of these portals was opened by way of a mysterious [[unidentified Forerunner machine|machine]] located in the jungle. A large number of UNSC forces, including [[Marine]]s and a [[Spartan]] [[Headhunter]], were sent to the Altar to reacquire the Conduit in tandem with [[unidentified Spartan-IV|a lone Spartan-IV]] who was deployed to the jungle to investigate the machine.<ref>'''Halo: Spartan Strike''', ''[[Operation B: Steadfast Pursuit]]''</ref><ref name="opc">'''[[Halo: Spartan Strike]]''', ''[[Operation C: Valiant Hammer]]''</ref><ref name="opd">'''[[Halo: Spartan Strike]]''', ''[[Operation D: Adamantine Shield]]''</ref><ref name="ope">'''[[Halo: Spartan Strike]]''', ''[[Operation E: Brother's Keeper]]''</ref> After securing the Conduit, the Spartan Headhunter was redeployed to Earth in hopes of using the Conduit to deter the subsequent [[Promethean]] [[Skirmish in New Phoenix|invasion]] of [[New Phoenix]] with help from ONI scientists and eventually the other Spartan.<ref name="opc" /><ref name="opd" /><ref name="ope" />


====The Composer====
====Relocation====
The ONI science teams retrieved various artifacts from the surface of Installation 03 and brought them on Ivanoff Station for study, including the installation's [[activation index]] and a [[Composer]]. An accident with the Composer killed the team researching the device; however, it provided coordinates which led the {{UNSCShip|Infinity}} to the [[shield world]] known as [[Requiem]]. When the [[Ur-Didact|Didact]] was awakened, he traveled to ''Ivanoff'' in his ship ''[[Mantle's Approach]]'' and [[Raid on Ivanoff Station|acquired the Composer]], using it to digitize ''Ivanoff's'' staff before jumping to slipspace to travel to [[Earth]] to use the recovered weapon on humanity's homeworld.<ref name="composer"/> However, SPARTAN-117 and Cortana followed the Didact into slipspace in an [[F-41 Broadsword]] in hopes of foiling his plan, ultimately defeating him.<ref>'''Halo 4''', campaign level ''[[Midnight]]''</ref>
{{Main|Mission to Installation 03}}
On July 25, 2557, [[Blue Team]] arrived on Installation 03 to investigate the loss of contact with Black Team on [[Terrence Hood|Admiral Terrence Hood]]'s orders. Upon discovering the fate of Black Team and the scientists, and destroying some of the Knights responsible for the massacre, they soon came across the Composer's Abyss and the slipspace portal within.<ref name="HE8">'''[[Halo: Escalation]]''', ''[[Halo: Escalation Issue 8|Issue #8]]''</ref> Entering the service portal, Blue Team arrived at the Composer's Forge, where they encountered the Didact, who summoned an army of newly-created Promethean machines to attack them. At the Didact's request, 859 Static Carillon transported Installation 03 through slipspace to orbit over the planet housing the Composer's Forge. However, Static Carillon also turned on the Didact and allied with Blue Team, as he felt betrayed by the Didact because he had broken his promise to the monitor not to produce more Prometheans. The Didact used the portal to return to Gamma Halo, taking one of the Composers with him. Blue Team followed in close pursuit and were confronted by the Didact again at the top of the Composer's Abyss.{{Ref/Reuse|HE9}} Though the Spartans were nearly killed by the Didact, Static Carillon arrived to the site just in time to save them, incapacitating the Didact and sending him into [[Control Room (Installation 03)|Gamma Halo's control room]] by utilizing the local [[teleportation grid]].<ref name="HE10">'''[[Halo: Escalation]]''', ''[[Halo: Escalation Issue 10|Issue #10]]''</ref>
 
Wielding Gamma Halo's [[Activation Index]] which the Didact had dropped when the monitor ambushed him, John-117 followed the Didact into the control room with Static Carillon's help while the other Spartans returned to their Longsword. The Master Chief used the Index to give 859 Static Carillon control of Gamma Halo, enabling the monitor to detach the segment of the ring housing the control center. This caused massive cracks to appear in the landscape surrounding the removed plate. Static Carillon was momentarily preoccupied with stabilizing the Halo as the plate's sudden removal would have otherwise resulted in the ring's destruction. Although the plates on both sides of the removed portion were not immediately connected, thus closing the loop of the ring, Gamma Halo was able to maintain structural integrity. After teleporting John-117 to safety just as the removed fragment impacted the Composer's Forge and destroyed it, Static Carillon took Installation 03 for safekeeping and repairs in an undisclosed location.{{Ref/Reuse|HE10}}
 
By [[2558|October, 2558]], Gamma Halo's new location was still unknown by the UNSC, with its Activation index being kept by ONI in a undisclosed location.<ref>'''[[Halo: Official Spartan Field Manual]]'''. ''page 98''</ref>
 
==Production notes==
In [[:File:H3 halo inner ring title.PNG|''Halo 3'''s texture files]], Installation 03 is named "Eta Halo", while the designation "Gamma Halo" is given to [[Installation 06]]. This is contradicted by one of the [[Audio log (Halo 4)|audio logs]] in ''Halo 4'', (as well as the [[Eleventh Hour reports]]), which identify Installation 03 as "Gamma Halo". Since the name assigned to the ring in ''Halo 4'' is conveyed in released media, it is considered to override the previous designation, which was never seen outside ''Halo 3'''s files.


==Gallery==
==Gallery==
<gallery>
<gallery>
File:H4-GammaHalo-Installation03.jpg|[[John-117|Master Chief]] gazing upon Installation 03.
File:Installation03S.png|The [[Forerunner symbols|symbol]] representing Installation 03.
File:Installation03.jpg|Hologram of Installation 03 seen on Installation 00 in ''[[Halo 3]]''.
File:Gamma Halo.png|Another view of the hologram of Installation 03 seen on Installation 00 in ''[[Halo 3]]''.
File:H4-GammaHalo-Installation03.jpg|[[John-117]] gazing upon Installation 03 in ''[[Halo 4]]''.
File:H4-GammaHaloInst03-ScanScreen.jpg|Another view of Installation 03.
File:KhaphraeSystem-planet.jpg|Doavyn, the planet around which Gamma Halo formerly orbited.
File:Escalation - GammaHalo Longsword.png|Blue Team's Longsword over the Halo.
File:Escalation - Desert.png|A desert on Installation 03.
File:HE - Installation 03 - horizon.png|A look at the ring.
File:Escalation - GammaCamp.png|A human science camp in a desert on the Halo's surface.
File:Escalation - BlackTeam&Didact.png|Black Team discovering the unconscious [[Ur-Didact]] on the installation.
File:Escalation - AbyssEntrance.png|The entrance to the [[Composer's Abyss]].
File:HE Installation 03 damaged.jpg|[[859 Static Carillon]] detaches a segment of the Halo, damaging the surface of the ring.
File:HSS-MustacheMan.png|A hologram of Installation 03 in ''[[Halo: Spartan Strike]]''.
File:HSS-Gamma Halo Pelican.png|A Pelican near Gamma Halo.
File:HSS-Infinity-Halo.png|The UNSC ''Infinity'' arrives at Gamma Halo.
File:HSS-Gameplay-Don't Look Down.jpg|A Spartan fighting Prometheans in Gamma Halo's jungles.
File:HSS-Gameplay-Pylons.jpg|A Forerunner structure in the Altar's vicinity.
File:Installation 03 Map 1.png|A map of a location on Gamma Halo in ''Halo: Spartan Strike''.
File:Installation 03 Map 2.png|A map of the [[Altar]]'s immediate region in ''Halo: Spartan Strike''.
</gallery>
</gallery>


Line 53: Line 98:
*''[[Halo: Glasslands]]''
*''[[Halo: Glasslands]]''
*''[[Halo: Combat Evolved Anniversary]]''
*''[[Halo: Combat Evolved Anniversary]]''
**''[[Terminal/Halo: Combat Evolved Anniversary|Terminal]]''
**''[[Terminal (Halo: Combat Evolved Anniversary)|Terminals]]''
*''[[Halo 4]]''
*''[[Halo 4]]''
 
*''[[Halo: Escalation]]''
==Note==
*''[[Halo 2: Anniversary]]'' {{C|Holographic representation only}}
<references group="note"/>
*''[[Hunt the Truth]]''
**''[[Hunt the Signal]]''
*''[[Halo: Spartan Strike]]''
*''[[Halo: Hunters in the Dark]]'' {{Mo}}
*''[[Halo 5: Guardians]]''
**''[[Halo 5: Guardians Limited Edition dossiers|Limited Edition dossiers]]'' {{Mo}}
*''[[Halo Mythos]]''
*''[[Halo: Official Spartan Field Manual]]'' {{Mo}}
*''[[Halo: Epitaph]]'' {{Mo}}
*''[[Halo: The Machine Breaks]]'' {{Mo}}


==Sources==
==Sources==
<references/>
{{Ref/Sources|2}}


{{Forerunner|array|category=no}}
{{Forerunner|array|category=no}}


[[Category:Halos]]
[[Category:Halo Array]]
[[Category:Places]]
[[Category:Installation 03 locations| ]]
[[Category:Forerunner technology]]

Latest revision as of 13:16, September 5, 2024

Installation 03
H4-Composer-GammaHalo-Ring.jpg
General overview

Description:

Deserts, jungles, and volcanic terrain[1]

Location:

Khaphrae system,[2] Scutum-Centaurus Arm,[3] Milky Way (formerly)

Gravitational anchor:

Doavyn[4] (formerly)

Operation overview

Type:

Halo installation

Function:

  • Galactic sterilization[5]
  • Flood containment and research[5]

Attached AI(s):

Monitor 049 Abject Testament[6]

Date of construction:

c. 97,445 BCE[5]

Status:

Deactivated from Installation 00[7]

Structural information

Diameter:

10,000 kilometers (6,200 mi)[8]

Surface width:

318 kilometers (198 mi)[5]

Gravity:

1.1 G[8]

Surface temperature:

-21°C to 43°C (-6°F to 109°F)[8]

Atmospheric composition:

1.02 (N2, O2, Ar)[8]

 

Installation 03, also known as Gamma Halo,[9][10] is one of the seven ring-shaped superweapons that comprise the Forerunners' Halo Array. Located in orbit of Doavyn in the Khaphrae system in the Scutum-Centaurus Arm of the Milky Way galaxy,[3][4] Installation 03's monitor is 049 Abject Testament.[6] The ring appears to have a red and cracked surface, indicating the presence of vast deserts and volcanic activity, but it also features jungles.[1]

Although Installation 03 was originally anchored in orbit around a gas giant for the firing of the Array, by the time of its discovery by humanity in the twenty-sixth century, it orbited a rocky planet, the face of which had been shattered as a result of a fairly recent impact event; the debris from the impact, still aglow as of 2557, has collected to form a dense asteroid field in orbit over the planet as well as the Halo.[11]

History[edit]

Construction and early history[edit]

The Forerunners had Installation 03 constructed by the Foundry of Installation 00[12] approximately around the same time as the rest of the Halo Array, circa 97,445 BCE during the Forerunner-Flood war.[5][13] The array was designed by the Forerunner Builders to combat the parasitic Flood by eradicating them and all sentient life in the Milky Way. After the rings were built, Installation 03 and its fellow Halos were distributed from Installation 00 to positions across the galaxy through slipstream space portals,[5][14] with Installation 03 itself being placed in orbit over Doavyn.[4] Afterwards, the Halo Array was fired and eradicated all sentient life from the galaxy. The Forerunners proceeded to reseed the galaxy with life from the species that were preserved on the Halo installations. Like its fellow installations, Installation 03 became home to dormant specimens of the Flood that were intended to be used to help find a cure to the parasite in the future. With the Flood defeated, the surviving Forerunners exiled themselves from the galaxy.[5]

Several centuries before its discovery by humanity, Doavyn experienced a mysterious cataclysmic event of unknown origin. This event resulted in the shattering of the planet, with large chunks of it exploding into space and becoming caught in orbit in the form of an asteroid field. During the cataclysm, Installation 03 suffered extraordinary damage and its monitor, 049 Abject Testament, went missing around the same time. Since the event, however, the Halo underwent significant repairs and had been returned to a habitable state.[4]

Human-Covenant War[edit]

"Fail-safe protocol: In the event of unexpected shutdown, the entire system will move to standby status. All remaining platforms are now ready for remote activation."
— 343 Guilty Spark, after the Halo Array is placed into standby mode[15]

During the Battle of Tribute in August 2552, the freighter Floral Express fled the planet while carrying colonial refugees. Following a random slipspace trajectory per the Cole Protocol, the ship arrived near Installation 03 on October 8. Upon returning to Earth, the crew was detained by the Office of Naval Intelligence for possible violations of the Cole Protocol. After examining Express's flight records, based on intelligence gleaned from the Battle of Installation 04, ONI contacted and redirected pioneer teams to the Khaphrae system.[10] Soon after confirming it was Installation 03, the teams attempted to find and secure the installation's Library to recover the activation index as part of neutralization protocols established by October 25. Since Earth was under attack at the time, the teams could not return home, and they did not have the force of arms to remain on the ring, the teams settled in for a long habitation in a makeshift orbital base which they named Ivanoff Station.[16]

On November 3, 2552, during the Battle of Installation 05, Chieftain Tartarus of the Covenant activated Installation 05, though United Nations Space Command and Sangheili forces managed to terminate the firing sequence before the Halo could fire. As per fail-safe protocol in the event of an unexpected shutdown, a signal was sent to Installation 03 and the rest of the Halos from Installation 05, placing all Halos of the array on standby mode, ready for remote activation from Installation 00. A readout from Installation 05's control room showed that Installation 03 was fully prepared to fire on demand.[1][15]

However, during the Battle of Installation 00 on December 11, 2552, the UNSC and allied Sangheili forces fought to prevent the Covenant from firing the Halo Array from the Ark, as Installation 03 and its fellow Halos were still in standby mode and was prepared to receive the signal to fire. Eventually, Master Chief Petty Officer John-117 succeeded in deactivating Installation 03, as well as the rest of the array, before it could be fired.[17]

Post-Covenant War[edit]

Shortly after the end of the war Ivanoff was expanded into a permanent UNSC facility.[16] In March 2553, Dr. Catherine Halsey was indefinitely detained there by Admiral Margaret Parangosky, CINCONI, as retribution for lying to the admiral about the creation and deployment of flash clones during the SPARTAN-II program's early phases.[18] Spartan teams were deployed to reconnoiter the surface, to quarantine areas of potential Flood contamination, and to recovery any notable Forerunner artifacts.[2] The PIONEER-class Mjolnir variant first saw field use during these exploratory deployments.[19]

In March of 2555, monitor 000 Tragic Solitude of Installation 00 utilized a captured human to activate the Halo Array's firing sequence, triggering a countdown set for the Halos firing in five weeks from March 8, 2555.[20] After discovering the countdown on Installation 07, the UNSC and Swords of Sanghelios launched a joint operation to Installation 00 in which a team destroyed Tragic Solitude and ended the Halo Array's firing sequence.[7]

The Composer[edit]

"Even now, your kind tinkers with the Composer in the shadow of the third ring. Children and fire, who disregard the welfare of the galaxy."
— The Ur-Didact about the human activities in and around Gamma Halo.[21]
Battle of Sunaion.
The Composer being extracted from the surface of Installation 03 by the UNSC Infinity.

The ONI science teams retrieved various artifacts from the surface of Installation 03 and brought them on Ivanoff Station for study, including the installation's activation index, a war sphinx's "eye",[22] and a Composer. An accident with the Composer killed the team researching the device; however, it provided coordinates which led the UNSC Infinity to the shield world known as Requiem. When the Ur-Didact was awakened, he traveled to Ivanoff in his ship Mantle's Approach and acquired the Composer on July 24, 2557, using it to digitize Ivanoff's staff before jumping into slipspace to travel to Earth to use the recovered weapon on humanity's homeworld.[11] However, SPARTAN-117 and Cortana followed the Didact into slipspace in an F-41 Broadsword in hopes of foiling his plan, ultimately defeating him.[23]

By the time of the Didact's attack, SPARTAN-II Black Team had been assigned to Gamma Halo,[24] along with a research attaché. The science team established a camp in one of the Halo's deserts. On July 25, Team Black and the scientists were killed by the Didact and his Promethean machines, who had been flung to the Halo through a slipspace portal aboard Mantle's Approach during the New Phoenix Incident. Around the same time, 859 Static Carillon, the monitor of the Composer's Forge, attempted to contact Gamma Halo's monitor after a service portal between the Halo and the Composer's Forge was reopened. Receiving no response, Static Carillon traveled through the portal to the Composer's Abyss on Installation 03, where he encountered the Didact. At the Promethean's request, the monitor led him to the portal to the Composer's Forge, on the condition that the Didact would not use the Composers to create more Promethean Knights, as Static Carillon considered the constructs "abominations".[25]

Actions in the jungle[edit]

A section of Installation 03 is ejected toward the Composer's Forge.
Main article: Battle of Installation 03

During these events, Covenant forces landed in a jungled region of Gamma Halo where they took the artifact known as the Conduit to a Forerunner structure they termed the Altar in order to open slipspace portals all over Gamma Halo and take control of the ring. One of these portals was opened by way of a mysterious machine located in the jungle. A large number of UNSC forces, including Marines and a Spartan Headhunter, were sent to the Altar to reacquire the Conduit in tandem with a lone Spartan-IV who was deployed to the jungle to investigate the machine.[26][27][28][29] After securing the Conduit, the Spartan Headhunter was redeployed to Earth in hopes of using the Conduit to deter the subsequent Promethean invasion of New Phoenix with help from ONI scientists and eventually the other Spartan.[27][28][29]

Relocation[edit]

Main article: Mission to Installation 03

On July 25, 2557, Blue Team arrived on Installation 03 to investigate the loss of contact with Black Team on Admiral Terrence Hood's orders. Upon discovering the fate of Black Team and the scientists, and destroying some of the Knights responsible for the massacre, they soon came across the Composer's Abyss and the slipspace portal within.[30] Entering the service portal, Blue Team arrived at the Composer's Forge, where they encountered the Didact, who summoned an army of newly-created Promethean machines to attack them. At the Didact's request, 859 Static Carillon transported Installation 03 through slipspace to orbit over the planet housing the Composer's Forge. However, Static Carillon also turned on the Didact and allied with Blue Team, as he felt betrayed by the Didact because he had broken his promise to the monitor not to produce more Prometheans. The Didact used the portal to return to Gamma Halo, taking one of the Composers with him. Blue Team followed in close pursuit and were confronted by the Didact again at the top of the Composer's Abyss.[25] Though the Spartans were nearly killed by the Didact, Static Carillon arrived to the site just in time to save them, incapacitating the Didact and sending him into Gamma Halo's control room by utilizing the local teleportation grid.[31]

Wielding Gamma Halo's Activation Index which the Didact had dropped when the monitor ambushed him, John-117 followed the Didact into the control room with Static Carillon's help while the other Spartans returned to their Longsword. The Master Chief used the Index to give 859 Static Carillon control of Gamma Halo, enabling the monitor to detach the segment of the ring housing the control center. This caused massive cracks to appear in the landscape surrounding the removed plate. Static Carillon was momentarily preoccupied with stabilizing the Halo as the plate's sudden removal would have otherwise resulted in the ring's destruction. Although the plates on both sides of the removed portion were not immediately connected, thus closing the loop of the ring, Gamma Halo was able to maintain structural integrity. After teleporting John-117 to safety just as the removed fragment impacted the Composer's Forge and destroyed it, Static Carillon took Installation 03 for safekeeping and repairs in an undisclosed location.[31]

By October, 2558, Gamma Halo's new location was still unknown by the UNSC, with its Activation index being kept by ONI in a undisclosed location.[32]

Production notes[edit]

In Halo 3's texture files, Installation 03 is named "Eta Halo", while the designation "Gamma Halo" is given to Installation 06. This is contradicted by one of the audio logs in Halo 4, (as well as the Eleventh Hour reports), which identify Installation 03 as "Gamma Halo". Since the name assigned to the ring in Halo 4 is conveyed in released media, it is considered to override the previous designation, which was never seen outside Halo 3's files.

Gallery[edit]

  • The symbol representing Installation 03.

    The symbol representing Installation 03.

  • Hologram of Installation 03 seen on Installation 00 in Halo 3.

    Hologram of Installation 03 seen on Installation 00 in Halo 3.

  • Another view of the hologram of Installation 03 seen on Installation 00 in Halo 3.

    Another view of the hologram of Installation 03 seen on Installation 00 in Halo 3.

  • John-117 gazing upon Installation 03 in Halo 4.

    John-117 gazing upon Installation 03 in Halo 4.

  • Another view of Installation 03.

    Another view of Installation 03.

  • Doavyn, the planet around which Gamma Halo formerly orbited.

    Doavyn, the planet around which Gamma Halo formerly orbited.

  • Blue Team's Longsword over the Halo.

    Blue Team's Longsword over the Halo.

  • A desert on Installation 03.

    A desert on Installation 03.

  • A look at the ring.

    A look at the ring.

  • A human science camp in a desert on the Halo's surface.

    A human science camp in a desert on the Halo's surface.

  • Black Team discovering the unconscious Ur-Didact on the installation.

    Black Team discovering the unconscious Ur-Didact on the installation.

  • The entrance to the Composer's Abyss.

    The entrance to the Composer's Abyss.

  • 859 Static Carillon detaches a segment of the Halo, damaging the surface of the ring.

    859 Static Carillon detaches a segment of the Halo, damaging the surface of the ring.

  • A hologram of Installation 03 in Halo: Spartan Strike.

    A hologram of Installation 03 in Halo: Spartan Strike.

  • A Pelican near Gamma Halo.

    A Pelican near Gamma Halo.

  • The UNSC Infinity arrives at Gamma Halo.

    The UNSC Infinity arrives at Gamma Halo.

  • A Spartan fighting Prometheans in Gamma Halo's jungles.

    A Spartan fighting Prometheans in Gamma Halo's jungles.

  • A Forerunner structure in the Altar's vicinity.

    A Forerunner structure in the Altar's vicinity.

  • A map of a location on Gamma Halo in Halo: Spartan Strike.

    A map of a location on Gamma Halo in Halo: Spartan Strike.

  • A map of the Altar's immediate region in Halo: Spartan Strike.

    A map of the Altar's immediate region in Halo: Spartan Strike.

List of appearances[edit]

Sources[edit]

  1. ^ a b c Halo Encyclopedia (2009 edition), page 174
  2. ^ a b Halo 4: The Essential Visual Guide
  3. ^ a b Halo: Warfleet, p. 13
  4. ^ a b c d Halo Encyclopedia (2022 edition), page 348
  5. ^ a b c d e f g Halo Waypoint: Halo Array
  6. ^ a b Halo: Combat Evolved Anniversary, Terminal 2
  7. ^ a b Halo: Hunters in the Dark, pages 262-264 (Google Play edition)
  8. ^ a b c d Halo Waypoint: Gamma Halo
  9. ^ Halo 4, Composer (audio log)
  10. ^ a b Eleventh Hour reports - #5
  11. ^ a b Halo 4, Composer
  12. ^ Halo: Primordium, page 371
  13. ^ Halo Waypoint: Canon Fodder - Array With Words
  14. ^ Halo Legends, Origins
  15. ^ a b Halo 2, campaign level, The Great Journey
  16. ^ a b Halo Mythos, page 164
  17. ^ Halo 3, campaign level, The Covenant
  18. ^ Halo: Glasslands, page 341
  19. ^ Halo 4, Pioneer armor/specialization description
  20. ^ Halo: Hunters in the Dark, pages 39-42 (Google Play edition)
  21. ^ Halo 4, campaign level Shutdown
  22. ^ Halo Waypoint: Canon Fodder: Have S'moa
  23. ^ Halo 4, campaign level Midnight
  24. ^ Halo Waypoint: Catalog Interaction
  25. ^ a b Halo: Escalation, Issue #9
  26. ^ Halo: Spartan Strike, Operation B: Steadfast Pursuit
  27. ^ a b Halo: Spartan Strike, Operation C: Valiant Hammer
  28. ^ a b Halo: Spartan Strike, Operation D: Adamantine Shield
  29. ^ a b Halo: Spartan Strike, Operation E: Brother's Keeper
  30. ^ Halo: Escalation, Issue #8
  31. ^ a b Halo: Escalation, Issue #10
  32. ^ Halo: Official Spartan Field Manual. page 98

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