Editing Halo Array (section)

==History==
===Construction===
[[File:ForerunnerObserver.jpg|thumb|250px|A Forerunner observes the construction of a Halo.]]
The first Halos were constructed by the [[Master Builder]] [[Faber]] and his [[Builder]]s in the millennia after the [[Flood]] was first encountered in the Milky Way, only to eventually retreat, seemingly due to [[Ancestors|early humanity]]'s efforts. The most extreme faction of Builders, which at the time controlled the [[Ecumene Council]], claimed that more extreme measures should be used to protect the galaxy against a possible Flood resurgence and proposed building the Array for this purpose. The initial iterations of the weapon system that would eventually become Halo did not share the circular shape of the final installations.{{Ref/Novel|Id=c30|Cry|Chapter=30}} Although they faced strong opposition from the [[Promethean]]s, led by the [[Ur-Didact|Didact]], for thousands of years, the faction eventually won the approval of the Council and commenced work on the Array.{{Ref/Reuse|c34}} Several prototypes of the Halos were constructed and powered by their host facilities, with [[Prototype Halo installation|one such installation]] orbiting a rogue planet.{{Ref/Novel|Id=SoI|SoI}}

However, at this point, the [[Librarian]] went to the Council and invoked the Mantle, stating that the Halos should be used as biological preserves in the [[Conservation Measure]], a plan to repopulate the galaxy should the Array ever be activated. The Council approved her request, and ordered that the Halo installations be constructed to have a range of natural environments for the Lifeworkers to preserve their biological specimens in. The Builders also agreed, seeing the inclusion of biological preserves as an effective means of competing with the Didact's shield worlds which incorporated similar measures.{{Ref/Novel|Id=string3|Sil|Detail=String 3}} However, the Master Builder later altered the initial plan, and his researchers began to use these specimens for a series of brutal experiments involving Flood infection.{{Ref/Novel|Pri|Page=188-190}}

Twelve Halos, each 30,000 kilometers in diameter, were originally commissioned by Master Builder Faber and constructed by [[Wise-Hands-to-Forge]]'s [[guild]] at the [[greater Ark]], the first Ark installation to be constructed. Only one of these original rings ultimately survived to be used in the Forerunners' final plan; this ring was designated [[Installation 07]]. Later on, an improved, separate array of six installations was constructed at the [[Installation 00|lesser Ark]],{{Ref/Novel|Cry|Chapter=40|Quote=Slowly it dawned on me that I was looking upon another array of installations: six rings, each rising from one of the petals of an enormous flower.}}{{Ref/Novel|Id=string29|Sil|Detail=String 29}} although the construction of the second Ark and its more powerful Halos was delayed by the Council for some time to prevent the Builders from becoming too powerful.{{Ref/Reuse|string3}}

In the later stages of the construction of the first Halos, a Builder named [[Maker-of-Moons]] was assigned to improve upon their designs. The first test deployments had proven the original rings to be unstable and too large to be practically deployed, generating enormous [[Slipstream space#Reconciliation|particle reconciliation]] debt when moved. The original Ark also had several flaws, including the inability to construct smaller installations. Although initially reluctant to admit these defects,{{Ref/Novel|Id=maker|Sil|Detail=String 5}} the Master Builder, informed by Maker's analysis, commissioned a new Ark and a series of new, more efficient rings several millennia after the first Halos were made; the Builders promoted this as a means to save even more species while being able to create more Halos. The new Ark, known as the lesser Ark or [[Installation 00]], and its six new Halos were constructed in secret,{{Ref/Reuse|string3}} their location known only to the Master Builder.{{Ref/Reuse|string33}}

The final Array, activated at the conclusion of the Forerunners' conflict with the Flood, comprised seven rings, each 10,000 kilometers in diameter, one of them being the reduced Installation 07.{{Ref/Reuse|string36}}

===Forerunner-Flood war===
[[File:FoM.jpg|thumb|left|250px|The original Halos gathered in orbit around [[Maethrillian]].]]
The first test of a Halo installation was conducted by [[Mendicant Bias]], who fired [[Installation 07]] in [[Charum Hakkor system|the system]] of [[Charum Hakkor]] and [[Faun Hakkor]] on a low power setting, destroying all of the sentient life on the latter planet and inadvertently releasing the [[Primordial]], an extant [[Precursor]] entity, from captivity on the former planet. Mendicant Bias then brought the released being to the Halo for study and began a 43-year-long interrogation of it. Eventually, Mendicant Bias disappeared with Installation 07 after being [[logic plague|corrupted]] by the Primordial.

Following the use of a second Halo by Master Builder Faber to suppress [[Battle of Janjur Qom|a rebellion]] on the [[San'Shyuum]] homeworld of [[Janjur Qom]], the other eleven Halo installations were taken to the Forerunner [[Capital]] during the tribunal against Faber, where it was to be decided whether to decommission them. However, in the midst of the trial, Mendicant Bias, turned rampant by the Primordial, appeared with Installation 07, which had gone missing following the ancilla's corruption and [[Fate of Maethrillian|assaulted the Capital]]. The AI attempted to seize control of the remaining Halos and fire them, but was only able to control five out of the twelve. One of those five was destroyed by the combined tidal forces of the Capital, the firepower of local Forerunner fleets, and the stress of a recent [[slipspace]] transition. The seven Halos that Mendicant Bias was unable to control were recalled to Installation 00 via a [[slipspace portal]], yet only [[Omega Halo|one]] escaped before the portal collapsed, with the other six breaking up in slipspace.

Installation 07 jumped into a distant system on a pre-designated destructive collision course with [[Wolf-faced planet|a planet]]—a security measure put in place in the event that it fell out of Forerunner control. The installation was eventually [[Battle for Gyre 11|reclaimed]] by the IsoDidact's forces, and it survived the passage of the planet despite taking heavy damage. A significant amount of the ring's superstructure was discarded, reducing its size to 10,000 kilometers, in order to allow it to perform a successful slipspace jump to the [[greater Ark]]. The installation's surviving biological specimens were transported on the Ark and the Flood outbreak on the ring was contained. The ring was refitted to enable it to function in concert with the six final Halos and deployed to its final station in the galaxy; the distribution of the final Halo Array would follow several years later.{{Ref/Reuse|string36}}

During the battle at the Capital and the years that followed, all but one of the original twelve rings—[[Omega Halo]]—apart from the repurposed Installation 07 were hunted down and destroyed by the Flood.{{Ref/Novel|Sil|Detail=String 27}} In the final hours of the Forerunner-Flood war, the ecumene's leadership retreated to the greater Ark, also home to Omega Halo. When a [[Battle of the greater Ark|Flood attack]] became imminent, it was decided that the IsoDidact go to the lesser Ark where he would deploy and fire the final Halo Array. Before relinquishing the coordinates to his secret Ark, the Master Builder met the IsoDidact in the control room of Omega Halo and fired the ring, obliterating a small portion of the [[star road]]s laying siege on the Ark and cleansing the [[Large Magellanic Cloud]] of life.{{Ref/Novel|Id=string33|Sil|Detail=String 33}}

====Activation====
{{Main|Great Purification}}
[[File:Array.png|thumb|300px|Installation 00 sending the Halo Array through a [[slipspace portal]] during the [[Forerunner-Flood war]].]]
The Flood and the star roads destroyed both Omega Halo and the greater Ark, but the IsoDidact managed to escape to Installation 00 to fulfill his mission. Arriving at the lesser Ark, the IsoDidact had the rings' Index collection distributed to their respective installations aboard a Lifeworker vessel over the Ark. The installations' primary monitors were also formally given their assignments to their final posts. Each monitor received a new name and numeric designation, each intended to serve as a form of memorial to the Forerunners. With the assistance of [[Offensive Bias]], the IsoDidact deployed the remaining six Halos from [[Installation 00 Citadel|the Ark's Citadel]]. Together with Installation 07, these installations comprised the final Halo Array of seven rings.{{Ref/Novel|Id=string36|Sil|Detail=String 36}}

[[File:HaloFiring.png|thumb|left|250px|The Halo Array fires, ending the conflict.]]
As Mendicant Bias and the Flood prepared their [[Battle of the Maginot Sphere|final assault]] on the lesser Ark in order to stop the firing of the Halos, the IsoDidact activated the Array. [[Installation 04]] was first in the Array to fire, with the others following sequentially as their fields intersected.{{Ref/Novel|Id=string38|Sil|Detail=String 38}} The pulse covered the entire galaxy, killing all sentient life within range and destroying the Precursors' [[neural physics]] architecture, including the [[Domain]] the Forerunners used to hold dear.{{Ref/Novel|Id=string37|Sil|Detail=String 37}} Whether the pulse would destroy star roads and other Precursor artifacts in faster-than-light transit was uncertain even to the Forerunners themselves, due to the largely unknown mechanisms of Precursor superluminal travel.{{Ref/Reuse|string36}} However, their total destruction seems apparent from the fact they were no longer in evidence when the Forerunners repopulated the galaxy.{{Ref/Reuse|rebirth}}

It was later discovered that a species called the [[Xalanyn]] had somehow survived the firing of the Halo Array. Frightened that the Xalanyn would eventually become the dominant species of the galaxy and claim the [[Mantle of Responsibility]], the Forerunners brought [[Installation 07]] into orbit of the Xalanyn homeworld under the pretense of a meeting and imprisoned them on the ring for containment and study.{{Ref/Game|Hi|[[HINF:Audio log|Audio logs]]}}

===Post-activation===
The seven Halos then remained relatively dormant for approximately 100,000 years, though at least [[Installation 05]] experienced a major Flood outbreak, while [[Installation 04]] was visited briefly by other species,{{Ref/Game|H2|Conversations from the Universe}} including a [[unidentified alien vessel|major crash-landing]] in [[40,000 BCE]].{{Ref/Game|CEA|CEA:Terminals|Terminals 5-6}}

The Array's activation caused catastrophic damage to ecosystems across the galaxy, with innumerable species both sentient and non-sentient rendered extinct. The dissolving of dead bodies thanks to [[solute]] eventually showed up on the fossil record, and was labeled by scientists as the [[Ross-Ziegler Blip]]. This curious gap was dismissed as an anomaly caused by spatial distortion until [[human]]ity discovered the Array in [[2552]]. Several species indexed by the [[Library Project]] did not survive [[reintroduction]] to their homeworlds, and those that did were all reverted to a [[Technological Achievement Tiers#Tier 7: Pre-Industrial|Tier 7]] technological state. The mostly uneventful period starting after the firing of the Halos was known as the [[dark time]].

The [[Covenant]], a theocratic multispecies alliance, was founded on the misguided belief that the Halo Array was actually the source of a "Divine Wind" that allowed the Forerunners to transcend the physical. By activating the Array, they too could embark on this "[[Covenant religion|Great Journey]]" and join the Forerunners in godhood.

===Rediscovery===
[[File:H2A-AlphaHaloDestruction.jpg|250px|thumb|The destruction of Installation 04.]]
Eventually, the stellar coordinates of [[Installation 04]] were discovered through the combination of a [[Sigma Octanus IV artifact|crystal artifact]] on [[Sigma Octanus IV]] and a [[Babd Catha Forerunner vessel|huge Forerunner artifact]] buried under the surface of [[Reach]]. The coordinates were utilized by the {{UNSCShip|Pillar of Autumn}}'s shipboard [[AI]] [[Cortana]] to escape from the [[Fall of Reach]]. The cruiser arrived over the Installation's orbit and was subsequently shot down by Covenant ships. Most of the ship's combat personnel escaped and made landfall on the artificial construct, triggering the [[Battle of Installation 04]].

During their investigations on Installation 04, the Covenant encountered a [[Flood containment facility]] and unknowingly released the dormant Flood; they quickly, but only partially, reestablished containment. Soon, a squad of [[UNSC Marine Corps|Marines]] led by [[Captain (Navy)|Captain]] [[Jacob Keyes]] accidentally broke quarantine again, expecting to find a large Covenant weapons cache. The human-waged guerrilla war quickly turned into a massive four-way battle between [[United Nations Space Command|UNSC]] forces, the Covenant, [[Sentinel]]s led by [[343 Guilty Spark]], and the Flood.

[[File:Halo Firing.png|250px|left|thumb|The partially constructed Installation 08 hovering over the Ark.]]
The battle finally culminated when [[SPARTAN-II program|Spartan]] [[John-117]] detonated the [[fusion engine]]s of the ''Pillar of Autumn'' on the surface of the installation, which compromised the structural integrity of the ring. The gravitational momentum and inertia still perpetuating the ring in orbit around [[Threshold]] then tore the ring apart. The remains of Installation 04 were scattered as debris in space. The explosion sent massive chunks of the ring careening into [[Basis]]; the moon suffered a constant bombardment of debris from the ring after its destruction.{{Ref/Game|H2|[[Burial Mounds]]}}

After escaping the [[Battle of Tribute]], a UNSC [[freighter]], ''[[Floral Express]]'', discovered [[Installation 03]] on October 8, 2552. By October 25 neutralization protocols had been established.{{Ref/Generic|[[Eleventh Hour reports]]|Detail=''5''}}

Later, the Covenant discovered a third Halo, [[Installation 05]]. On this Halo, the Flood had already been released and much of the ring had been compromised, including its monitor, [[2401 Penitent Tangent]]. Soon, [[Battle of Installation 05|another four-way conflict]] began. The battle ended in the Flood manifesting a [[Gravemind]] and successfully escaping the ring aboard the infected {{UNSCShip|In Amber Clad}}. The ring was nearly activated by [[Tartarus]], the [[Chieftain of the Jiralhanae|Chieftain]] of the [[Jiralhanae]], but [[Commander]] [[Miranda Keyes]] pulled the [[Activation Index]] out of the installation's core at the last moment, causing all six functional installations to go into "standby mode", ready for remote activation from the Ark.

The human survivors returned to [[Earth]] and resumed their fight against the Covenant, who had uncovered a large structure on Earth, which they assumed to be the Ark. The Covenant landed the [[keyship]] ''[[Anodyne Spirit]]'' in the center of the structure, activating it. However, the structure was soon revealed not to be the Ark, but [[Excession|a generator]] of a portal to the actual [[Installation 00|Ark]], a massive artificial world located outside the galaxy. Human and [[Swords of Sanghelios|Sangheili]] forces proceeded through the portal to the newly-discovered installation to prevent the Covenant from activating the remaining Halo rings remotely. Eventually, the Gravemind arrived at the Ark aboard [[High Charity]], the Covenant's capital city, which had been turned into a Flood hive. The hive crashed onto the installation, releasing the Flood.

Soon, 343 Guilty Spark, John-117, and [[Arbiter]] [[Thel 'Vadam]] discovered that the Ark had been constructing a [[Installation 08|new Installation 04]], to replace the one which had previously been destroyed. This new installation was only days from being completed. The humans decided to activate the new ring to stop the Flood, resulting in the incomplete ring destroying itself,{{Ref/Book|H4EVG|Page=14}} severely damaging the Ark in the process.{{Ref/Novel|Id=hitd c2|HitD|Chapter=2}}
{{Clear}}

===Post-Covenant War===
[[File:HSS-Infinity-Halo.png|thumb|250px|The {{UNSCShip|Infinity}} approaches Installation 03.]]
By [[2553#January|January 2553]], the UNSC had begun an active search for the remaining Halo installations, with the intent to decommission them.{{Ref/Novel|Gla|Chapter=2}} By at least [[2557|July 2557]], UNSC scientists were studying the Array for decommissioning, with facilities at Installations 03 and 05. Installation 00 was scouted by both automated probes and the ONI vessel {{UNSCShip|Rubicon}}, which was lost several days after its arrival due to the actions of [[343 Guilty Spark]].{{Ref/Novel|Pri}}

[[Installation 07]] was discovered in early [[2555]] due to records found on [[Sarcophagus]] by Dr. [[Luther Mann]] with an ONI research group stationed on the ring immediately afterward. A crisis occurred when it was discovered that Installation 07 — as well as the other Halos — were counting down to activation in five weeks from March 8, 2555. As the stand-by failsafe protocol had never been deactivated, it was realized that the Ark was the only location where the Array could've been activated. With the help of [[Huragok]] [[Drifts Randomly]], the [[Excession]] was reactivated, but Earth came [[Battle of Earth (2555)|under attack]] from [[Retriever Sentinel]]s from the Ark. A joint UNSC-[[Swords of Sanghelios]] [[Operation: FAR STORM|mission]] was launched to the Ark where it was discovered that the Ark's now-[[rampancy|rampant]] [[monitor]], [[000 Tragic Solitude]], had initiated the activation with the help of [[Bobby Kodiak]]. Having witnessed the destruction sentient life caused, particularly to Forerunner constructs, Tragic Solitude had activated the Array for a two-fold reason: to trick humanity into reactivating the portal so he could strip-mine Earth for materials to repair the Ark and eliminate the sentient species of the galaxy. Mann was able to deactivate the Array from the Ark and the team forced Tragic Solitude to end the invasion of Earth. After Tragic Solitude attacked again, he was destroyed by Bobby Kodiak at the cost of his own life, ending the threat the rogue monitor posed to sentient life.{{Ref/Novel|HitD}} At some point following the loss of Installation 08, Installation 00 began to construct [[Installation 09|a new replacement]], one that would be maintained in the Ark's Foundry in a near-finished state for some time.{{Ref/Level|Id=Hold the Line|HW2|HW2:Hold the Line|Hold the Line}}

In [[2556#February|February 2556]], the [[Outer Colony]] world of [[Sedra]] suffered a deadly [[bioweapon]] [[Terrorist attack on Sedra City|attack]] by [[Unidentified Sangheili Zealot (Sedra)|a Sangheili terrorist]]. The bioweapon source was traced to a new element mined from [[Alpha Shard|a surviving fragment]] of [[Installation 04]], created by the [[supernova]]-level explosion that had destroyed the original installation. A joint [[ONI]]-[[Sedran Colonial Guard]] [[Mission to Alpha Shard|mission]] was launched to capture the human smugglers mining the element and to destroy the deposits to prevent future use of the bioweapon. Though most of the team was killed, ONI [[Lieutenant Commander]] [[Jameson Locke]] and Sedran Private [[Talitha Macer]] escaped in the smugglers' {{Class|Bactrian|freighter}} while [[Colonel]] [[Randall Aiken]] sacrificed himself to destroy the deposits and the fragment's resident [[Lekgolo]] population with a [[HAVOK tactical nuclear weapon]].{{Ref/Film|HN}}

By early [[2557]], humanity had returned to the Ark and set up the [[Henry Lamb Research Outpost]]. Under the guidance of the [[smart AI]] [[Isabel]], the researchers began directing Retriever Sentinels to strip-mine lifeless systems to repair the Ark. The reconstruction slowly reached full automation until the humans were no longer needed to nudge it along. Over time, the Ark was repaired with noticeable differences between one day and the next over only the course of three months.{{Ref/Game|HW2|Phoenix Logs}}

Later, the scientists studying Installation 03 located the [[Composer]] on the ring and accidentally activated it, causing them to [[mind transfer|become digitized]]. However, the sensor data left over from the incident led to the discovery of the [[shield world]] [[Requiem]]. Later, the [[Ur-Didact|Didact]] traveled to Ivanoff Station near Installation 03 to retrieve the Composer and used the device to harvest the essences of the entire research staff before heading for Earth.{{Ref/Level|H4|Composer}} Meanwhile, [[Jul 'Mdama's Covenant]] and their [[Promethean]] allies attempted to take control of Installation 03 by using the [[Conduit]] to open [[slipspace portal]]s across the ring, but the attack was repelled by a [[Spartan]] [[Headhunter]].{{Ref/Level|SS|Operation C: Valiant Hammer}}

[[File:HW2 I04C.png|thumb|250px|left|The [[Installation 09|second replacement Halo]] above the Ark in [[2559]].]]
A day later, after the Didact's [[New Phoenix Incident|defeat at Earth]], the Forerunner and some of his Promethean forces fell on Installation 03 via a slipspace portal. SPARTAN-II [[Blue Team]] followed, resulting in a [[Mission to Installation 03|skirmish]] fought on both Installation 03 and the [[Composer's Forge]]. The Forge's monitor, [[859 Static Carillon]], transported Installation 03 over the Forge for the Didact, who intended to use the ring to finally destroy humanity.{{Ref/Comic|Id=HE9|HE|Issue=9}} However, the monitor instead allied with the Spartans due to his disagreements with the Didact and helped them defeat the Forerunner. After John-117 disabled the Halo's failsafes, Static Carillon ejected the segment housing the [[Control Room (Installation 03)|control room]], causing it to fall upon the Composer's Forge. The monitor then stabilized the ring and took it to an unknown location for repairs.{{Ref/Comic|Id=HE10|HE|Issue=10}}

In [[2558#August|August 2558]], the crew of the ''[[Ace of Spades]]'' visited Installation 07 in their pursuit of the [[coordinate key]] given to [[343 Guilty Spark]] by a [[mind transfer|personality imprint]] of the [[Librarian]]. With the help of [[Submonitor]] [[091 Adjutant Veridity]], Spark and [[Rion Forge]] accessed Zeta Halo's [[Cartographer#Installation 07|Cartographer]] which pointed them to [[New Carthage|a location]] in a far-off sector on a [[star map]] and provided the two with the second half of the key before Rion was sucked through a [[slipspace portal]]{{Ref/Reuse|PoL16}} by the [[Precept]]{{Ref/Novel|PoL|Chapter=35}} using a [[personal slipspace unit]]{{Ref/Novel|PoL|Chapter=19}} to [[Erebus VII]], although Spark was able to hold onto the key.{{Ref/Novel|Id=PoL16|PoL|Chapter=16}}

In late [[2558]], Installation 00 became a battlefield once again as the mercenary organization known as the [[Banished]] arrived there following a sudden shutdown of the Earth portal. The Banished launched an assault on the UNSC bases on the Ark and soon gained control of the entire installation. In [[2559#May|May 2559]], the {{UNSCShip|Spirit of Fire}}, having drifted in space for 28 years, was mysteriously transported to Installation 00 by an agency evidently within the Ark.{{Ref/Level|HW2|HW2:The Signal|The Signal}} During [[Second Ark Conflict|the ensuing conflict]] between the UNSC and the occupying Banished forces, Professor [[Ellen Anders]] learned of the contingency ring held within the Foundry and was able to launch the new Halo, with the intent of deploying it to Installation 04's former site in the [[Soell system]] where a [[distress beacon]] could be raised to the UNSC.{{Ref/Reuse|Hold the Line}} While the Halo was successfully sent through the portal, its firing mechanism disabled by Professor Anders, the ring was intercepted and forced out of slipspace on the way by a [[Guardian]].{{Ref/Level|Id=Last Stand|HW2|HW2:Last Stand|Last Stand}}

In October 2559, the Banished succeeded in opening a slipspace portal to [[Reach]] through which Atriox and some of his forces returned to the Milky Way galaxy in [[Pegoras|a]] [[Eklon'Dal Workshop Lich]]. Before the portal was shut down, [[Castor]] and his small detachment of the [[Keepers of the One Freedom]] hijacked Atriox's Lich and used it to fly back through the portal to the Ark, intending on using the Ark to fire the Halo Array and start the Great Journey.{{Ref/Novel|Id=SoR|SoR}}{{Ref/Book|Id=Enc22P247|Enc22|Page=247}} On the Ark, the Keepers allied themselves with [[Prelate]] [[Dhas Bhasvod]] and [[Dhas Bhasvod's Covenant|his Covenant]], guided by the Forerunner [[archeon-class ancilla]] [[Intrepid Eye]] who sought to fire the Halo Array in order to destroy the [[Domain]] and defeat [[Cortana]] for the sake of her own plans. The combined factions were opposed by both forces from the ''Spirit of Fire'' and the Banished spearheaded by the [[Clan of the Long Shields]] as neither the Banished nor the UNSC wanted Castor and Bhasvod to succeed. The Covenant and Keeper forces were able to reach [[Epsilon Clarion]], the only facility on the Ark capable of firing the Halo Array that was not inaccessible or inoperable. However, they suffered heavy casualties from UNSC and Banished [[Battle of Epsilon Clarion|attacks]] along the way and Castor abandoned his plans after learning the truth about the true purpose of Halo. On the order of [[Veta Lopis]], the ''Spirit of Fire'' launched an [[orbital bombardment]] of [[EMP]] [[MAC]] rounds that destroyed Epsilon Clarion and with it, Intrepid Eye and the Ark's ability to fire the Array. The Keeper detachment was left decimated with only Castor and Sangheili [[Blademaster]] [[Inslaan 'Gadogai]] surviving while Bhasvod, after killing [[Mark-G313]], departed to link up with the rest of his own forces.{{Ref/Novel|Id=DW|DW}}

In [[2559#December|December 2559]], the Banished took over Installation 07 in search of the [[Xalanyn]] who had been imprisoned on the ring following the [[Great Purification]]. When the UNSC came to the ring in order to stop [[Cortana]] once and for all, [[Battle for Zeta Halo|a conflict]] erupted on the ring between the two sides, leading to the apparent destruction of the ''Infinity''. In [[2560#May|May 2560]], the [[Harbinger]] succeeded in locating her species just before the Master Chief killed her. Subsequently, Atriox reached and unlocked a facility on Zeta Halo holding the [[cylix]]es of the Xalanyn. During the destruction event that