Battle of Installation 05: Difference between revisions

At the beginning of the [[Battle of Earth]] in [[2552#October|October 20, 2552]], the [[Prophet of Regret]] led [[Fleet of Sacred Consecration]], which contained two {{Class|CAS|assault carrier}}s and thirteen {{Class|CCS|battlecruiser}}s on an expeditionary raid that stumbled upon [[Earth]], [[human]]ity's homeworld and the UNSC's strongest fortress.<ref name="cairo">'''Halo 2''', campaign level ''[[Cairo Station]]''</ref> After substantial ground, air, and space losses, and faced with the possibility of being overrun on the ground and intercepted by UNSC ships if it tried to escape to orbit, Regret ordered a retreat. With Regret aboard, ''[[Solemn Penance]]'' made an emergency in-atmosphere [[slipspace]] jump over [[New Mombasa]], with the {{Class|Stalwart|light frigate}} {{UNSCShip|In Amber Clad}} following it into slipspace.<ref name="deltahalo"/><ref name="metro">'''Halo 2''', campaign level ''[[Metropolis]]''</ref>

On [[2552#November|November 2, 2552]], ''Solemn Penance'' exited slipspace over [[Installation 05]], orbiting [[Substance]] in the [[Coelest system]]. Regret's assault carrier took position over the installation, establishing a solid ground presence with armor and patrols of [[Type-26 Banshee]]s, and also companies of infantry by means of [[Type-52 Phantom]]s. The Covenant ground forces fortified themselves in a series of Forerunner ruins and temple structures, establishing [[Shade|anti-air defenses]].<ref name="deltahalo"/>

Arriving in the first room of a large ruin complex standing in the lake itself,<ref name="deltahalo"/> [[Cortana]] translated a sermon from the Prophet of Regret, alerting the UNSC that the Covenant was intending to activate Installation 05. Commander [[Miranda Keyes]] had been reviewing [[Cortana]]'s information from the installation her father had discovered a month prior,<ref name="H2-DeltaHalo">'''''[[Halo 2]]''''' - ''[[Delta Halo]]'', opening cutscene</ref> and was able to locate [[Installation 05]]'s Library. She set out to reach it and secure it's [[Activation Index]] before the Covenant could do so. Sergeant [[Johnson]] was ordered to extract the Marine and ODST forces supporting John-117 and rendezvous with the ''In Amber Clad'' at the Library.<ref name="Regret">'''[[Halo 2]]''' campaign level ''[[Regret (Halo 2 level)|Regret]]'', opening cutscene</ref>

Inside the temple, a large contingent of [[Sangheili Honor Guardsman|Sangheili Honor Guardsmen]] and [[Unggoy]] defended the Prophet. Cortana detected a wave of Phantoms too large to measure en-route to the temple, indicating to the Spartan time was running short. John-117 was able to board the Regret's [[anti-gravity chair|gravity throne]] and dispatch the frail [[San'Shyuum]] with his fist. The Prophet's guards quickly began to empty the temple, and Cortana detected the incoming Phantoms changing course, heading away from the temple. Shortly thereafter, a {{Class|CAS|assault carrier}} positioned itself over the main temple, and fired upon the structure with its [[energy projector]]. With not enough time for airborne evac, John leapt into the lake to evade the glassing beam. Here, he was soon grasped by the tentacles of the [[Gravemind]], a [[Flood]] compound intelligence, and taken prisoner.<ref name="regret"/>

A short time earlier, Commander Keyes received a transmission from Cortana indicating they were aboard the final Gondola and approaching Regret's temple. The ''In Amber Clad'' had discovered that Installation 05's Library was surrounded by a [[containment shield]]—an impenetrable [[energy shielding|energy shield]] projected by a large wall-like Forerunner structure. After failing to find a way around the barrier, the Frigate deployed a platoon-sized force of Marines to the wall led by Gunnery Sergeant [[Marcus Stacker]] and Staff Sergeant [[Banks]]. The Marines moved through the outer wall with ease, unmolested by local Sentinel defenses - likely due to being recognized by the automated guardians as [[Reclaimers]].<ref name="icon"/>

With his forces decimated, but the Containment Shield now disabled, Stacker radioed ''In Amber Clad'' suggesting Keyes proceed straight to the Library while his troops attempted to hold their position. A short time later, Stacker made contact with Keyes once again, confirming their engagement with non-Covenant hostile lifeforms, while Banks and other Marine survivors could be heard staging a desperate defense.<ref name="icon"/>

The Quarantine Zone was intended to be a location where the Sentinel custodians of the installation could herd the Flood, and prevent them from entering the Library. Two [[Sentinel manufacturing facility]] ships hung in the air, deploying Sentinel reinforcements.<ref>'''The Official Halo 2 Strategy Guide''', ''page 122''</ref> However, the Quarantine Zone was compromised by the Flood, and the Flood managed to crash one of the floating facilities using a [[Type-26 Wraith]], sending it plummeting down to the installation's surface.<ref name="icon"/>

The Arbiter met with Commander Rtas 'Vadumee and two other Sangheili just outside of the Sentinel wall, and together, they defended a small hill from the Flood before pushing inwards, where the Special Operations Commander had established a small outpost.<ref name="icon"/> There, the Special Operations force held out against waves of Flood attacks from the cliffs before they were reinforced by a pair of Phantoms that dropped off a [[Type-46 Spectre]] and a pair of [[Type-32 Ghost]]s. The Covenant were able to use these vehicles to advance through a large indoor Forerunner facility before entering the first of a series of expansive outdoor arctic canyons. Despite the prowess of the Special Operations Sangheili and the Arbiter, the UNSC were swifter to advance through the Quarantine Zone—''In Amber Clad'' deployed a Pelican dropship that cruised above the battling Flood and Sentinels, cutting directly towards the Library while the Arbiter and his men were forced to fight through waves of Flood, including Flood and the vehicles they had commandeered, while all the while, Enforcers rained heavy fire.<ref name="zone"/>

The small Covenant task force was forced to debark from its vehicles as they transgressed the wreckage of one of the Sentinel constructor factories, although just beyond the wreckage on the other side, they were met by another Covenant Phantom, this one dropping off a Spectre manned by Rtas 'Vadumee himself and another Special Operations Sangheili. However, as they progressed through the last series of snowy plains, they were met with increasingly heavy resistance as they neared the Library. The Sentinels were in much larger force, while a large number of Flood-infested humans savagely held a barricade against the Library, using crates, turrets, and heavy weapons to prevent anyone to gain entrance to the Library and retrieve the index, which would eventually lead to the extermination of the Flood.<ref name="zone"/>

{{Quote|The release of the parasite was unexpected, unfortunate. But, there is no need to panic. In truth, this is a time to rejoice. A moment that all the Covenant should savor... for the Sacred Icon has been found. With it, our path is clear, our entry into the Divine Beyond guaranteed! The Great Journey is nigh... and nothing, not even the Flood, can stop it!|[[Prophet of Truth]]<ref name="gravemind"/>}}

A small UNSC Marine force led by [[Miranda Keyes]] and [[Avery Johnson]] was able to slip past the Flood infestation into the Library, followed shortly by the Arbiter, Rtas 'Vadumee, and half a dozen Special Operations Sangheili. There were a pair of [[anti-gravity gondola]]s, that when activated, autonomously brought their passengers into the upper tiers of the Library, where the index was kept. While the UNSC was first able to seize a gondola, the Covenant were close behind. However, when the Flood began to screech, alerting the Covenant that they were in full force in the bowels of the Library, Rtas 'Vadumee took a pair of Special Operations Sangheili, holding them at the entrance to the gondolas to defend the rest from the Flood as the Arbiter took four Special Operations Sangheili on the second gondola, trailing behind the UNSC-held one. Flood entered the gondolas, jumping from the upper levels and also crawling in underneath on their undersides, assailing both the UNSC troops and the Sangheili forces. Tartarus, in his Phantom, attempted to provide cover fire for the Arbiter, using the three plasma cannons of his dropship to burn off any Flood on the upper levels of the Arbiter's gondola, but later, Tartarus chased after the UNSC-held gondola.<ref name="zone"/>

Finally, both gondolas ascended to the top levels of the Library, although the UNSC one arrived first, and a small UNSC force of six soldiers, led by Miranda Keyes and Avery Johnson, entered. Although many [[Flood combat form]]s had been exhausted in the Gravemind's last-ditch attempt to stave off the gondolas, there were a large number of [[Pod infector]]s prowling the Library which killed off the four UNSC Marines as Keyes and Johnson advanced towards the core of the Library. Meanwhile, the Arbiter silently snuck in behind them. Miranda managed to grab the index over a seemingly endless chasm. Once Keyes and Johnson had the index, they were ambushed by Thel 'Vadamee. Johnson was knocked unconscious by the Arbiter, but Keyes was able to take down Arbiter's shields by firing at him with an [[M7 SMG]]. However, Tartarus entered with four of his [[Jiralhanae Captain]]s. Tartarus used the [[Fist of Rukt]] to stun Miranda and gravitationally levitate her towards him, draping her over his shoulder and then clasping the index and securing it for himself. Tartarus informed Thel about the Jiralhanae's intended genocide of the increasingly incompetent Sangheili, an act sanctioned by the High Prophets themselves. The Chieftain then knocked the stunned Arbiter into a pit leading to the depths of Installation 05, initiating the [[Great Schism]].<ref name="zone"/>

The engagement at the Library proved to be devastating to the UNSC and resulted in the loss of ''In Amber Clad'' as the Flood took over the frigate. Meanwhile, Tartarus brought the Sacred Icon to ''[[High Charity]]'', where the Prophet of Truth exulted him and encouraged the Covenant to celebrate, for the Sacred Icon was secure, and that soon afterward, the Halos would be fired and the Great Journey would be brought upon the Covenant.<ref name="gravemind"/>

{{Quote|The Elites have failed to protect the Prophets, and in doing so, have put all our lives at risk. Let no warrior forget his oath, 'Thou, in faith, shall keep us safe, whilst we find the Path'. With my blessing, the Brutes now lead our fleets! They ask for your allegiance, and you shall give it.|[[Prophet of Truth]]<ref name="gravemind"/>}}

The Covenant would not activate the Halos unimpeded. The Flood, who would be starved if the rings were activated, would soon attack the Covenant to prevent the activation, and the UNSC, who understood that all sentient life would be erased, also opposed the Covenant. Later, after the fragmentation of the Covenant into the [[Fleet of Retribution|Sangheili-dominated faction]] and the Prophet-led Covenant, the Sangheili would understand the true purpose of Halo and attack the Covenant to prevent them from activating the ringworld. Meanwhile, [[John-117]], who had fallen into the lake, and the Arbiter, who had been thrust into the chasm of the Library, were both caught by the tentacles of the [[Gravemind]], along with the assimilated [[Prophet of Regret]] and [[2401 Penitent Tangent]], the monitor of Installation 05. The Gravemind sent the Arbiter and John-117 to aid in his plan to prevent the activation of Installation 05, manipulating the Halo's [[teleportation grid]] to send John-117 to High Charity to search for the index, and sending the Arbiter to the cliffs just beyond the [[Control Room (Installation 05)|Control Room]], another likely spot.<ref name="gravemind"/>

However, the Sangheili were quick to strike back. The Gravemind teleported the Arbiter to a high cliff near the Control Room, and gave him an objective: to prevent Tartarus from using the Sacred Icon and activating Halo, which would not result in the promised sublimation event of the Prophets, but only death and destruction on a galactic scale. The Arbiter arrived just too late, witnessing the murders of a handful of Sangheili from afar at the hands of the Jiralhanae, but was able to push forward against a number of patrolling Jiralhanae, and meet up with a number of surviving Sangheili warriors. The small group of survivors, led by the Arbiter, pushed northward through a large Jiralhanae-held Forerunner structure, unpinning small groups of scattered loyal Unggoy and killing dozens of Jiralhanae, Kig-Yar, and Yanme'e. Afterward, they emerged from the structure, and fought their way past several Jiralhanae camps, commandeering several Ghosts along the way. As they neared [[Jiralhanae encampment|another]] cluster of structures, they encountered heavier resistance in the form of Jiralhanae-controlled Wraiths. The Arbiter and his Sangheili allies managed to defeat the Jiralhanae and secure a landing zone, allowing for additional Sangheili reinforcements to arrive.<ref name="uprising"/>

After securing the first half of the camp, the Arbiter and his allies moved into the weapons cache, where the Jiralhanae had aggregated a large number of Covenant and UNSC weapons alike. The Arbiter led his group outside the structure and into a tunnel and defeated the Jiralhanae within. After exiting the tunnel, the Arbiter met with Rtas 'Vadumee who was commandeering a Wraith.<ref name="uprising"/>

John-117 was teleported by the Gravemind directly into the [[High Council Chamber]] of High Charity, where the Prophets of Truth and Mercy addressed the Covenant that the Sacred Icon was secure. Before the Spartan could kill both Prophets, they escaped by means of an [[elevator]], while the doors were locked and waves of [[Jiralhanae Honor Guardsman|Jiralhanae Honor Guardsmen]], [[Jiralhanae Minor]]s, and Unggoy entered in an attempt to kill the supersoldier. Cortana managed to unlock the doors, and John-117 chased through two towers and a set of corridors in pursuit of Truth and Mercy. However, Cortana had discovered Marines that were being kept prisoner on High Charity and John-117 freed them. Truth's transmissions to the rest of the Covenant allowed Cortana to triangulate his position, allowing her to direct John-117 and the Marines in their hunt for the Prophet. The Covenant attempted to stop Cortana, but were unsuccessful.<ref name="gravemind"/>

As John-117 and the Marines reached [[Hanging Gardens A]], the first scene of Covenant fratricide was seen, as Sangheili Honor Guards, [[Sangheili Minor]]s, [[Mgalekgolo]], and Unggoy fought against Jiralhanae and [[Kig-Yar Sniper]]s amongst the massive plants. John-117 and his men advanced to the [[Mid Tower]], where Rangers and Special Operations Sangheili entered the fray, and numerous [[Yanme'e]] entered the engagement. During the fight, the Flood-controlled ''In Amber Clad'' then jumped directly into High Charity, where it plummeted uncontrollably, crashing into the [[Far Tower]]. However, by the time that the small UNSC squad entered [[Hanging Gardens B]], Sangheili resistance on High Charity had broken. In the second Hanging Gardens, the Sangheili and those loyal to them fell back, leaving behind large numbers of [[stationary shield generator]]s, abandoning numbers of Unggoy to berserk Jiralhanae as the Sangheili fell back to the Far Tower and the [[Mausoleum of the Arbiter]], drawing a last line of defense there. Despite their efforts, the Prophets of Truth and Mercy, Tartarus, and a handful of Jiralhanae Captains were able to tunnel through the last Sangheili defenses to the far docking bays of the Far Tower.<ref>'''The Official Halo 2 Strategy Guide''', ''page 129''</ref> John-117 pursued Tartarus, fighting through the Far Tower and the Mausoleum of the Arbiter to make it through to the landing pads.<ref name="gravemind"/><ref>'''The Official Halo 2 Strategy Guide''', ''page 128''</ref>

The Spartan was too late, however. The Prophet of Truth ordered Tartarus to deliver the activation index to the Control Room of Installation 05, and activate the Halos. Tartarus took a detachment of Jiralhanae Honor Guards along with him in two Phantoms, along with UNSC prisoners Avery Johnson and Miranda Keyes. Truth took a third Phantom to the [[Forerunner Dreadnought]]—the central energy source of High Charity, and also a fully functional Forerunner [[keyship]] that the two remaining High Prophets were going to use to reach Earth, and finish the battle. Meanwhile, the Flood were escaping from the crashed hulk of ''In Amber Clad''. They seeped out of the rents in its hull armor and commandeered its Pelican dropships, sending them over the surface of High Charity, crashing into the floors and releasing [[Flood combat form|combat forms]], and spilling [[Pod infector]]s out of the air from opened hatches. The Prophet of Mercy was beset by a Pod infector and died before he could reach his Phantom. However, Tartarus and Truth were able to depart before John-117 could arrive.<ref name="gravemind"/>

Meanwhile, Rtas 'Vadumee informed the Arbiter that Tartarus was within the Control Room, and would soon be activating the Halos. However, the doors to the Control Room were nearly completely impenetrable, and would only be opened by the firing of the main cannon of a [[Type-47A Scarab]] walker. Fortunately, a Scarab was available at the [[Bastion of the Brutes]], a Forerunner structure used by the Jiralhanae as their local base of operations.<ref name="uprising"/><ref name="journey"/>

While Rtas 'Vadumee advanced forward in a Wraith tank, the Arbiter and another Special Operations Sangheili took a Spectre, and together, the Sangheili battled through a swarm of Ghosts, several Wraiths, and a bombarding Phantom. Eventually, the Sangheili secured entrance into the Bastion of the Brutes, where the Arbiter found another Special Operations Sangheili and a pair of Mgalekgolo, all of whom were loyal to the Sangheili. Meanwhile, Rtas 'Vadumee said that he would briefly watch the Arbiter's back, and would prevent any Jiralhanae reinforcements from entering in behind them while they cleared out the stronghold. Later, he announced that he would retake the {{Class|CCS|battlecruiser}} that was hanging in the distance. The Arbiter and his band of Sangheili and Mgalekgolo stormed the Bastion, fighting their way past Jiralhanae, Kig-Yar, Yanme'e, and even a Phantom. Eventually, they freed imprisoned Councilors and Mgalekgolo and eventually reached the platform where the Scarab was docked. Much to their surprise, they discovered the presence of humans who were being held prisoner by the Jiralhanae. Amongst the prisoners was Sergeant Avery Johnson. The Jiralhanae had just received orders from Tartarus to execute the prisoners, when the Arbiter and his followers attacked. The humans, with the help of their Sangheili allies-to-be, took advantage of this distraction to free themselves and take control of the Scarab.<ref name="journey"/>

After all the Jiralhanae on the platform were dead, there was a brief standoff between the Sangheili and the UNSC personnel. However, both the Arbiter and Sergeant Johnson realized that they shared a common enemy and objective. The two sides begrudgingly joined forces and set out to stop Tartarus from activating Halo.<ref name="journey"/>

The Arbiter took possession of a Banshee and provided cover fire for Johnson's Scarab. Together, they fought their way past a large Jiralhanae force consisting of multiple Wraiths, Banshees, Spectres, and Shade turrets. Eventually, the group reached the [[Control Room (Installation 05)|Control Room]] and destroyed its doors with the Scarab's primary cannon. Inside the chamber, the Arbiter fought his way through numerous Jiralhanae forces who had been ordered to prevent the Arbiter from disturbing Tartarus while he activated the Halos. Despite reinforcements, the high-ranked Jiralhanae were unable to hold the room, and the Arbiter continued down an arched corridor before confronting Tartarus in the control room. Inside, he found Tartarus and several Jiralhanae, along with two prisoners—Miranda Keyes and [[343 Guilty Spark]] who had been captured by the Covenant during the [[raid on the Threshold gas mine]].<ref name="journey"/>

Tartarus had been trying to force Keyes to insert the index into its place, as only a [[Reclaimer]] could activate Halo. The Arbiter entered the control room and told the Chieftain to stand down. Tartarus refused, and his Jiralhanae were about to attack the Arbiter, when Johnson suddenly appeared, pointing a [[Type-50 particle beam rifle]] at Tartarus' head. Seeing that he was in danger, Tartarus ordered his Jiralhanae to hold back for the moment. The Arbiter then had Guilty Spark explain that the Halos were weapons of mass destruction, built by the Forerunners as a last resort means to stop the Flood.  Spark further revealed the Forerunners ultimately perished when they activated the Halo Array, sacrificing themselves to contain the Flood. Despite Guilty Spark's revelations, Tartarus — blinded by his loyalty to the Prophets and his hatred for the Sangheili — refused to listen. The Chieftain threw Guilty Spark at Johnson, knocking him out for a moment. He then physically forced the Sacred Icon into Miranda Keyes' hand and shoved it into the receptacle, beginning the activation of Installation 05. Miranda jumped out of the way of the imminent firefight as the Arbiter, the conscious Johnson, and a small cluster of recently-arrived [[Sangheili Zealot]]s and Councilors, charged at Tartarus and his guard of four Jiralhanae Captains. The Jiralhanae guards were quickly slain, and Tartarus retreated onto the three-level structure at the center of the control room. When the Arbiter and his allied Zealots and Councilors pursued, they found to their dismay that Tartarus was protected by a nearly impenetrable energy shield. Only Sergeant Johnson, with his particle beam rifle, could disable Tartarus' shields, and only for a few seconds.<ref name="journey"/>

Meanwhile, Miranda Keyes argued with Guilty Spark and eventually forced him to reveal that the firing sequence could be stopped if the Reclaimer simply removed the index from the its position. However, she could not do anything while Tartarus was still alive. The Arbiter and Sangheili battled Tartarus, who used his massive [[Type-2 gravity hammer|gravity hammer]], the [[Fist of Rukt]], to slay many high-ranking Sangheili. Eventually, the Arbiter succeeded in killing Tartarus. Commander Keyes immediately leapt to action after Tartarus died, snatching the index from the control panel. Despite the fact that Installation 05 was primed to fire, the removal of the index only triggered a partial firing, one that was inconsequential and led to the loss of no life whatsoever. However, 343 Guilty Spark informed them that because of the partial activation of Installation 05, the other five remaining installations were set onto standby mode, and were ready to fire upon command from a central Forerunner installation: [[Installation 00|the Ark]].<ref name="journey"/>

The battle at [[Installation 05]] was extremely costly with significant political-military consequences for the [[Covenant]] and remarkable ramifications for all sentient life in the galaxy. Thousands of Covenant forces were slain in [[John-117]]'s mission to kill the [[Prophet of Regret]],<ref name="regret"/> the race to acquire the [[activation index]] from the [[Control Room (Installation 05)|Control Room]], and the massive ground and orbital battles that took place on Installation 05, ''[[High Charity]]'', and between the Covenant fleets orbiting over [[Substance]] because of the [[Great Schism]].<ref name="goo199"/>

[[UNSC]] losses were remarkably lower because of the small number of forces they brought into the theater of operations, almost solely the crew and soldiers of {{UNSCShip|In Amber Clad}}. Hundreds of [[UNSC Marine Corps|Marines]] and [[Orbital Drop Shock Troopers]], however, were lost in UNSC ground operations: the assassination of Regret and the storming of the [[Quarantine Zone]]. A large number were also infected by the Flood and made continual appearances as [[Flood combat form|combat forms]] in the [[Sentinel wall]], Quarantine Zone, and Flood-infested High Charity.<ref name="gravemind"/> The crewmen of the ''In Amber Clad'' were presumably killed and reanimated by the Flood as well. However, the UNSC suffered the least amongst the four warring factions in the Battle of Installation 05. In many ways, Installation 05 was the true turning point in the [[Human-Covenant War]]. In the long term, the political chaos wrought throughout the battle would shatter the Covenant into [[Covenant remnants|warring factions]]. The Sangheili eventually allied themselves with their human enemies, bolstering their fleets and taking their military expertise away from the Covenant. The immediate loss of High Charity and the majority of its enormous [[High Charity defense fleet|defense fleet]] drastically reduced the threat of the Covenant to human space. While still dangerous, the Covenant forces loyal to the Prophets ultimately proved incapable of defending themselves over the last few weeks of the war.<ref>'''Halo 3''', campaign level ''[[The Covenant (level)|The Covenant]]''</ref>

[[Sentinel]] defenses were completely trampled over, particularly in the Quarantine Zone, where within hours, the Flood had managed to infiltrate the well-defended Sentinel wall and seize control of large tracts of the Quarantine Zone, even grounding an airborne [[Sentinel manufacturing facility]].<ref name="icon"/> The Flood also permeated the [[Library]] and the surrounding grounds, eliminating almost all Sentinels from the skies, leaving only scattered [[Enforcer]]s to do battle with them. The Flood also controlled UNSC and Covenant vehicles alike, reinforcing their considerable ranks with [[M808B Scorpion]] tanks, [[M12 Chaingun Warthog]]s, [[Type-26 Wraith]] tanks, and [[Type-32 Ghost]] assault vehicles. Flood losses were initially high because of the Arbiter's actions in the Quarantine Zone and John-117's on High Charity. However, it was inconsequential: the Flood scored a notable victory on High Charity, capturing the Covenant's mobile home planetoid and [[terraforming|transforming]] the structure into a [[Flood hive]].<ref name="charity"/>

The Covenant [[High Council|ruling system]] was destabilized, with the death of the [[Prophet of Regret]] on Installation 05 at the hands of [[John-117]] and the death of the [[Prophet of Mercy]] on High Charity due to Flood infestation.<ref name="gravemind"/><ref name="regret"/> The [[Prophet of Truth]] held dictatorial power, with several subservient [[Minor Prophet]]s, completely re-shifting the political dynamics of the Covenant. The Jiralhanae held reign over the majority of the [[Covenant military]], bringing their innate tenaciousness and ferocity to the front lines quite unlike the Sangheili. The Jiralhanae also assumed more lower-level Covenant military authority, now replacing the Sangheili as the leaders of field squads and teams. The Jiralhanae also introduced a unique set of bloodthirsty weaponry into the Covenant's field arsenals. The [[Covenant fleet]] was believed to lose quite a bit of its technical proficiency without the innate technical knowledge of the Sangheili.<ref>'''Halo: Ghosts of Onyx''', ''page 194''</ref>

{{Quote|no=two|1=Terrence Hood|q1=Master Chief? Mind telling me what you're doing on [[Forerunner Dreadnought|that ship]]?|2=John-117|q2=Sir. Finishing this fight.|3=Admiral Terrence Hood and John-117<ref name="journey"/>}}

In the end, the fates of the Covenant fleets over High Charity is unknown, although at least one Covenant vessel, the ''Incorruptible'', escaped. 'Matrankee was commended for his actions against the Flood on Installation 05, and was promoted to [[Fleet Master]].<ref>'''Halo: Ghosts of Onyx''', ''page 243''</ref> The Flood continued to attempt to escape High Charity in Covenant starships, and a fleet led by [[Rtas 'Vadum]] on the ''[[Shadow of Intent]]'' held the line against the Flood. However, the Flood managed to infest at least one Sangheili-controlled ship, the ''Indulgence of Conviction'', a {{Class|CCS|battlecruiser}}, and made a [[Slipstream space|slipspace]] jump to [[Earth]] to attempt to infest the human homeworld. The Sangheili fleet in orbit over High Charity followed the Flood-controlled cruiser, and when the Flood ship crash-landed on Earth, Rtas 'Vadum and his forces aided the [[UNSC Home Fleet]] in destroying the Flood vessel and terminating the Flood spread across the planet. However, prior to this, High Charity had already left its orbit around Installation 05, and according to a scrambled distress signal from [[Cortana]], was already on its way to Earth to enter the [[Portal at Voi|Portal]].<ref name="floodgate"/> It was indicated though that all of the other Flood-controlled ships were destroyed though: upon landing on Earth a Sangheili informed the Arbiter that the Sangheili's fleet had taken care of all of the Flood-controlled ships, except for the one which had managed to break through and jump to Earth. It can be inferred that the Flood-controlled ships were ultimately all destroyed except the one intercepted on Earth and High Charity which was later destroyed by the Master Chief in the [[Battle of Installation 00]]. [[Cortana]] was left to the clutches of the Gravemind. It was later shown that she answered a few questions to buy herself some time and used the opportunity to help find a way to destroy the Flood. She would later be rescued by the Master Chief who would then destroy High Charity during the [[Raid on High Charity]].<ref>'''Halo 3''', campaign level ''[[Cortana (level)|Cortana]]''</ref>

*The [[Battle of Earth]] begins between the [[UNSC Defense Force]] and the [[Covenant]]'s [[Fleet of Sacred Consecration]].<ref name="cairo"/>

*UNSC forces heavily outnumber Covenant forces and the [[Prophet of Regret]] orders a retreat.<ref name="metro"/>

*With Regret aboard, the {{Class|CAS|assault carrier}} ''[[Solemn Penance]]'' makes an emergency [[slipspace]] jump over [[New Mombasa]], followed by {{UNSCShip|In Amber Clad}}, [[UNSC Coral Sea|''Coral Sea'']], [[UNSC Dusk|''Dusk'']], [[UNSC Paris|''Paris'']], and [[UNSC Redoubtable|''Redoubtable'']].<ref name="metro"/>

*The Battle of Installation 05 begins.<ref name="deltahalo"/>

*''Solemn Penance'' deploys ground forces to the surface of the installation and Regret occupies a [[Temple (Installation 05)|Forerunner temple]].<ref name="regret"/>

*[[John-117]] is deployed to the installation's surface with several [[Orbital Drop Shock Troopers]], and Sergeant Major [[Johnson]] is sent to support with two Pelicans. The UNSC forces fight their way towards Regret's position.<ref name="regret"/>

*Regret sends out a distress signal and apology to the rest of the [[High Council]], which the [[Prophet of Truth|Prophets of Truth]] and [[Prophet of Mercy|Mercy]] reluctantly accept. Both messages are intercepted by Cortana.<ref name="regret"/>

*''[[High Charity]]'', its [[High Charity defense fleet|defense fleet]], and the [[Second Fleet of Homogeneous Clarity]] arrive in the system.<ref name="regret"/>

*[[Rtas 'Vadum]]ee sends [[Type-52 Phantom]]s to rescue Regret, but Truth delays the Phantoms.<ref name="regret"/><ref name="icon"/>

*John assassinates the Prophet of Regret inside the temple and enters the lake as ''Solemn Penance'' fires upon the temple. The Spartan is captured by the [[Gravemind]].<ref name="regret"/>

* ''In Amber Clad'' deploys a Platoon-sized force of Marines to an entrance in the [[Sentinel Wall]], lead by Gunnery Sergeant [[Stacker]].<ref name="icon"/>

*The [[Sangheili]]'s failure to protect Regret leads to the [[Changing of the Guard]], as [[Jiralhanae]] occupy Sangheili positions.<ref name="icon"/>

* [[Tartarus]] directs many waves of [[Jiralhanae]]-led Covenant infantry in an assault upon the Sentinel Wall.<ref name="icon"/>

*Keyes and Johnson secure the Index, however are ambushed by the Arbiter. The Arbiter is interrupted by Tartarus, who seizes the Index and propels 'Vadamee into a hole in the center of the room, having been ordered to do so by the Prophet of Truth.<ref name="zone"/>

*Most of the [[Sangheili Councilor]]s are taken to the Control Room of Installation 05 for the "consecration of the Sacred Icon" however they are murdered by the [[Jiralhanae]].<ref name="uprising"/>

*The Prophet of Truth transfers command of the [[Covenant military]] to the Jiralhanae, while Tartarus declares war on the Sangheili, and the [[Fall of High Charity]] begins. Fighting between Sangheili and Jiralhanae forces breaks out all over High Charity. As word spreads, fighting takes place throughout the fleet, as Sangheili and Jiralhanae controlled ships attack one another.<ref name="gravemind"/>

*The [[Flood]] invade High Charity during the battle, entering the city's dome via precision [[Slipstream space|slipspace]] jump aboard ''In Amber Clad'' and its embarked [[D77-TC Pelican|Pelicans]]. The Prophet of Mercy is attacked by an [[Pod infector]] and abandoned by the Prophet of Truth, who boards the Fore runner Dreadnought, and sends Tartarus to the Control Room with orders to activate the Installation.<ref name="gravemind"/>

*The Flood takes control of High Charity and many of its warships. Jiralhanae and Sangheili fleets remaining around the city-station continue to destroy each other.The Prophet of Truth departs High Charity for Earth aboard the [[Forerunner Dreadnought]], to join the [[Battle of Earth]], with John-117 aboard.<ref name="journey"/>

*Tartarus attempts to activate Installation 05 are interrupted by the arriving Johnson and 'Vadamee. After the Arbiter attempts to convince him of the ring's real purpose, Tartarus activates the Ring by forcing [[Miranda Keyes|Commander Miranda Keyes]] to insert the Index into the Control Room's [[The Core|Core]].<ref name="journey"/>

*Thel 'Vadamee, with the aid of [[Avery Johnson|Sergeant Johnson]] and multiple Sangheili Zealots and Councillors, kills Tartarus.<ref name="journey"/>

*Commander Keyes aborts the activation of Installation 05, placing the entire [[Halo Array]] on standby status. [[343 Guilty Spark]] reveals the existence of [[Installation 00|the Ark]].<ref name="journey"/>

*The [[prowler]] ''[[UNSC Dusk|Dusk]]'' witnesses the battle between Sangheili and Jiralhanae held ships above Delta Halo, both fighting each other pausing only to escalate an immediate outbreak of the Flood from the ringworld. ''Dusk'' subsequently flees the battle and links up with [[Patterson's battle group]] at Earth.<ref name="goo199"/>

*[[Sangheili Major]] [[Voro Nar 'Mantakree|Voro 'Mantakree]] kills his [[shipmaster]], [[Tano 'Inanraree]], while he is attempting to allow the Flood to enter the ship. He then assumes command of the ship, ''[[Incorruptible]]'', and becomes the ''de facto'' leader of the [[Second Fleet of Homogeneous Clarity]]. He leads his new forces to [[Joyous Exultation]], pursued by the [[Jiralhanae]] [[Gargantum]] and his ships.<ref name="goo189"/>

*[[Fleet of Retribution|Thel 'Vadam's forces]] [[glassing|glass]] Installation 05's surface to neutralize the Flood.<ref name="11thhour"/>