Editing Battle of Requiem

*Several ''CRS''-class light cruisers{{Ref/Reuse|Dawn}}

In the [[97,445 BCE|final year]] of the [[Forerunner-Flood war]], the [[Ur-Didact]] used a [[Composer]]—a secret massive [[Forerunner]] device capable of converting living beings into digital form that was long abandoned—in order to convert his loyal [[Promethean]] warriors into [[Promethean Knight]]s to combat the Flood with risk of infection but failed due to their insufficient number.{{Ref/Game|Halo 4|[[Terminal (Halo 4)|Terminal 5]]}}{{Ref/Game|Id=terminal6|Halo 4|[[Terminal (Halo 4)|Terminal 6]]}} During the [[Flood]] and [[star road]]s' [[Battle of the greater Ark|invasion]] of the [[Greater Ark]] while attempting to gain more additional Knight forces in his mechanized army once returned to the [[Requiem]], the Didact took his personal [[flagship]] ''[[Mantle's Approach]]''—supported by thousands of [[sentinel]]s under his command—to [[Omega Halo]], the youngest of dozen original [[Halo Array|Halo installations]], and fired the Composer upon the ring to harvest the installation's entire [[Erde-Tyrene civilization|human population]] that was the majority of the remaining human specimans of [[Librarian]] after moving from [[Earth]].{{Ref/Reuse|terminal6}}{{Ref/Novel|Novel=Halo: Silentium|Detail=Strings 31-32}} The Ur-Didact would serve the loss of biological form of human race by being forever imprisoned into digital form as the final punishment for [[Human-Forerunner wars|defying]] the Forerunners earlier when the [[ancient humanity|ancient mankind]] were used to be their rival until their [[Battle of Charum Hakkor|downfall]].{{Ref/Reuse|terminal6}} He would also plan to eradicate what it remains in humanity along with every other "suspect" species that may treaten the Forerunners' hold of the [[Mantle]] to ensure that only the Forerunner would be worthly alone to hold the Mantle.{{Ref/Novel|Novel=Halo: Silentium|Page=289}}

The loss of most of mankind and Didact's betrayal were determined to prompt the Librarian to have the Didact once again exiled into a [[Cryptum]] for the second time, now viewing the [[Warrior-Servant]] as a traitor by the [[IsoDidact]] for his genocide and also deserting the Forerunners.{{Ref/Reuse|Id=strings34}}{{Ref/Novel|Novel=Halo: Silentium|Detail=Strings 33}} When the Didact was imprisoned by her wife in a "combat" Cryptum previously maintained on ''Mantle's Approach'' at the [[core of Requiem]] after being incapacitated by two shot from a [[Z-750 binary rifle]], the Librarian hoped his husband would spend his time in meditation reflecting upon his past misdeeds, and that the damage wrought on his mind by the Gravemind would be corrected with the aid of contact with the [[Domain]] as the Forerunner Promethean constructs were taken over by the Librarian to prevent the Ur-Didact from being reawakened until his meditation would be complete.{{Ref/Game|Id=terminal7|Halo 4|[[Terminal (Halo 4)|Terminal 7]]}}{{Ref/Novel|Id=strings34|Novel=Halo: Silentium|Detail=Strings 34}} This would expect the Didact to halt his planned genocide against humanity and instead help his former foes ascend eventually to be the new [[Reclaimer|caretakers]] of the [[Milky Way|galaxy]] by educating them on the Mantle and the Forerunners' technological achievements with the [[Janus Key]].{{Ref/Reuse|terminal7}}{{Ref/Game|Id=SOE9|Game=Spartan Ops|[[Key|S1E9 Key]]}} However, it was considered as a shocking failure to the Librarian after learning the Domain's true nature as a [[Precursor]] creation as well as the myhtical [[Organon]], and that the activating of the final Halo Array would destroy the Domain along with all Precursor constructs by dismantling neural physics, ensuring the Forerunners' history being lost. As the Halo Array [[Great Purification|fired]], Domain and the rest of the Precursor artifacts were destroyed, leaving the Ur-Didact being condemned to spend the next 100,000 years in complete silence, dwelling on his own insanity and rage.{{Ref/Novel|Novel=Halo: Silentium|Page=322-323}}

Attempting to flee the incomplete [[Installation 08]] [[Raid on Installation 08|faulty activated and destroyed]] to stop the [[Flood]] and end the [[Gravemind]] that resulted [[Installation 00]] being severed after the [[Battle of Installation 00|last battle]] of the [[Human-Covenant War]] on [[2552#December|December 11, 2552]], {{UNSCShip|Forward Unto Dawn}} managed to enter the [[Slipspace portal]] between the Ark and [[Earth]] that is still activated by the [[Portal at Voi]] as soon as it collapsed while inside it, cutting the frigate in half as a result.{{Ref/Level|Halo 3|[[Halo (Halo 3 level)|Halo]]}}{{Ref/Level|Id=h3epilogue|Game=Halo 3|Level=[[Epilogue (Halo 3)|Epilogue]]}} The aft half of the {{UNSCShip|Forward Unto Dawn}}, carrying [[SPARTAN-II Program|Spartan]] [[John-117]] and AI [[Cortana]], was transported to an unknown region in empty space shortly after escaping Installation 08 on a course toward Requiem with Cortana activated ''Forward Unto Dawn''{{'}}s [[emergency locator beacon]] while the Spartan entered cryostasis.{{Ref/Reuse|h3epilogue}} With the last contact with [[United Nations Space Command|UNSC]] being during the Battle of Installation 00 and only the [[Arbiter]] [[Thel 'Vadam]] aboard the other front half of the ''Dawn'' that was able to return to the UNSC-controlled space by crashing into [[Indian Ocean]] on Earth on December 23 after John-117 went cryo-sleep,<ref name="vociwaypoint">[https://www.halowaypoint.com/en-us/forums/db05ce78845f4120b062c50816008e5d/topics/glasslands-complaints/4e36f9a8-65f0-4d0b-bfbc-3c9d3e4b263c/posts?page=5#post100 '''Waypoint''': ''Glasslands complaints...'' forum thread]</ref> John-117 who was honored as the humanity's greatest hero and soldier alongside Cortana were listed as [[missing in action]] like all Spartan-IIs that died during the Covenant War and presumed dead.{{Ref/Reuse|h3epilogue}}

In [[2556]], Cortana, still stranded in unknown space alongside John-117 still unconscious, began to truly experience the effects of [[rampancy]] after [[seven]] years of age.{{Ref/Film|Id=origins|Film=Halo Legends|Story=Origins|StoryLinkText=Origins}} She tried to communicate with the Spartan without response from him and also composing a history of Forerunners and of [[human]]ity and their wars since around [[Forerunner-Flood war|one hundred millenium]] until 2552.{{Ref/Reuse|origins}} She continued to become more and more unstable as more time passed.{{Ref/Reuse|forward1}} Despite her true rampancy state, Cortana already once experienced signs of rampancy when she was [[Logic plague|tormented]] by the Gravemind aboard the Flood-infested ''[[High Charity]]'' when John-117 returned to Earth via ''[[Anodyne Spirit]]'' to join the united UNSC-[[Fleet of Retribution|Sangheili]] alliance after [[Scramble onboard Forerunner Dreadnought|failing to kill]] the [[Prophet of Truth]].{{Ref/Book|Book=Halo: Evolutions - Essential Tales of the Halo Universe|Section=Human Weakness|SectionLinkText=Human Weakness}}

After being commissioned on [[2557#February|February 21, 2557]] known as the "''Infinity'' Day", {{UNSCShip|Infinity}}, now re-purposed for peace and exploration, was tasked with finding the remaining [[Halo Array|Halo Installations]] in order to etablish UNSC permanent bases for studying and decommissioning ancient galaxy-destroying ringworlds as the UNSC already managed to set up these bases on the [[glassing|glassed]] [[Installation 05]] and [[Installation 03]], the two first Halo rings discovered after the [[Battle of Installation 04|destroyed]] [[Installation 04]].{{Ref/Reuse|Infinity}} After the ''Infinity'' extracted a [[Composer]] from Installation 03 to transport it to ''[[Ivanoff Station]]'', an ONI team were digitized by the Composer while studying and excavating the Forerunner artifact and subsequently, the sensor data from the incident contained coordinates of Requiem, allowing the crew of the ''Infinity'' to find the location of the [[shield world]].{{Ref/Reuse|Infinity}} Simultaneously, [[Commander]] [[Thomas Lasky]] picked up Cortana's distress signal from the ''Dawn'' and learned that John-117 was aboard the light frigate.{{Ref/Reuse|forward1}} He had a flashback as he remembered when he met the Spartan when the [[Covenant]] [[Battle of Circinius IV|invaded]] [[Circinius IV]] in [[2526#April|April 26, 2526]] by saving him from a [[Unidentified Sangheili Zealot (Circinius IV)|Sangheili Zealot]] and a [[Mgalekgolo]], and was inspired by SPARTAN-117 to rise to the rank of Commander in the [[UNSC Navy]].{{Ref/Film|Id=forward1|Halo 4: Forward Unto Dawn|Episode=1}}{{Ref/Reuse|forward5}} Preparing for the departure for Requiem and recover John-117 and Cortana, UNSC ''Infinity''{{'}}s crew entered cryo as ''Infinity'', leading a moderate expeditionary fleet of {{Class|Autumn|heavy cruiser}}s and {{Class|Paris|heavy frigate}}s, jumped in [[slipstream space|slipspace]].{{Ref/Reuse|forward5}}

Blaming the UNSC for being "correctly" the responsible of the death of his wife, [[Raia 'Mdama]], [[Shipmaster]] [[Jul 'Mdama]] who was formerly part of the [[Servants of the Abiding Truth]] opposing the [[Thel 'Vadam]]'s [[Swords of Sanghelios]]'s peace with the [[Unified Earth Government]] vowed to seek vengeance against the humanity and establish his [[Jul 'Mdama's Covenant|new faction]], an [[Covenant remnants|offshoot]] of the former [[Covenant]] going by the same name. In response, 'Mdama accrued a number of [[Covenant starship|Covenant vessels]] to begin to amass a fleet sized enough to engage the [[UNSC]] [[Expeditionary Strike Group 1]], with the traditional {{class|CAS|assault carrier}} ''[[Song of Retribution]]'' being his [[flagship]] and of his faction and appointed himself as the [[Supreme Commander]] of his "Covenant".{{Ref/Reuse|song}}

Within the next two years after the [[Battle of the Citadel|end]] of the Great War in [[2554]], [[Jul 'Mdama]] led his fleet, including ''Song of Retribution'' and at least 3 other assault carriers, to [[Requiem]] in search of the shield world's "treasure": he sought the [[Ur-Didact|Didact]], the leader of the [[Warrior-Servant|Forerunner military]], due to their mutual hatred of humanity.{{Ref/Reuse|jul}} However, 'Mdama could not find a way into Requiem despite every attempts, so the ''Song of Retribution'' held station in orbit.{{Ref/Reuse|song}} On [[2557#July|July 21, 2557]], the Covenant fleet that accompanied ''Retribution'' returned to Requiem via [[Slipstream space|slipspace]] as the ''Dawn'' entered the [[planet]]'s gravity well; 'Mdama sent his forces to board the frigate to keep any humans away.{{Ref/Game|Id=jul|Halo 4|[[Terminal (Halo 4)|Prologue Terminal "Jul 'Mdama"]]}} As his Covenant troops entered the ship, Requiem began to scan the ''Dawn'' for a "[[Reclaimer]]".{{Ref/Reuse|Dawn}}

Cortana awoke John-117 from cryostasis and informed him of intruders on the ''Forward Unto Dawn''. When the duo found out that there was a [[Jul 'Mdama's Covenant|former Covenant]] fleet around the ''Dawn'' and one of the {{Pattern|Zanar|light cruiser}}s was moving into a intercept course, Cortana instructed John to fire one of ''Dawn''{{'}}s missiles at the cruiser. The Spartan battled through the wreckage and managed to destroy the cruiser moments before it fired its energy projector. While on the outer hull, John was scanned by a beam coming from Requiem, which then opened its interior for the Reclaimer. ''Forward Unto Dawn'', along with several Covenant cruisers, was pulled into Requiem's interior. At least one cruiser was destroyed when a piece of wreckage from the ''Dawn'' impacted upon it as they were drawn into the shield world.{{Ref/Reuse|Dawn}}

As the ''Infinity'' and her fleet continued to approach Requiem, the ship's control systems were swiftly hacked by the Didact as Requiem opened again one of its portals and pulled the ''Infinity'' into the shield world, causing violent explosions inside the supercarrier as her approach went chaos with her parked vehicles crashing one another.{{Ref/Reuse|The Commissioning}} John escaped Requiem's core just as ''Infinity'' entered Requiem's outer shell.{{Ref/Level|Id=Forerunner|Game=Halo 4|Level=[[Forerunner (level)|Forerunner]]}}

''Infinity'' crashed into a jungle inside Requiem and was immediately attacked by Promethean and Covenant forces. During the attack, ''Infinity''{{'}}s commanding officer, [[Andrew Del Rio|Captain Andrew Del Rio]], deployed [[UNSC Marine Corps|Marines]] and [[SPARTAN-IV Program|SPARTAN-IVs]] for reconnaissance, believing that the ''Infinity'' would be able to fend off her attackers while providing support for ground forces. The ill-prepared Marines were overwhelmed by the unfamiliar Prometheans and suffered heavy casualties. In addition to losing their landing zones, many [[D79-TC Pelican|Pelican dropships]] were shot down. ''Infinity'' was eventually boarded, allowing the Didact to extract information about the [[Composer]], a Forerunner superweapon, from the ship's mainframe. John-117 joined Commanders [[Thomas Lasky]] and [[Sarah Palmer]] just as Captain Del Rio recalled ground forces to ''Infinity''. John cleared a landing zone for the UNSC forces and headed to ''Infinity''{{'}}s crash site. There, John-117 and a squad of SPARTAN-IVs broke through to one of ''Infinity''{{'}}s hangar bays. John piloted a [[HRUNTING/YGGDRASIL Mark IX Armor Defense System|Mantis assault mech]] and fought through ''Infinity''{{'}}s maintenance corridors to some of the ship's weapon systems. After John destroyed the Covenant jammers near the control terminals, ''Infinity'' disabled two ''CRS''-class light cruisers and damaged the Didact's Cryptum, prompting the Forerunner to retreat.{{Ref/Reuse|Infinity}} The repaired ''Infinity'' left her crash site, but since she was still under the effect of the Requiem's gravity well, Captain Del Rio sent John-117 and [[Gypsy Company]] to take down the Forerunner anti-air [[particle cannon]]s near the gravity well generator.{{Ref/Level|Id=rec|Game=Halo 4|Level=[[Reclaimer (level)|Reclaimer]]}}

At some point during the battle in 1604 hours, Cortana conversed the original shipoard AI of the ''Infinity'', [[Aine]], who was heavily damaged by by the time when the ''Infinity'' crashed for a dozen seconds, asking her for the help the ship's crew. However, Aine, noticing Cortana's [[rampancy]] that may kill even more of ''Infinity''{{'}}s crew and the deactivation of her central power core at Cortana's hands, declined. She subsequently threatened her with informing Captain Del Rio to lock Cortana and John-117 on the ship or articulate the [[Unified Earth Government]]'s policy for final dispensation as Cortana continued to ignore advice from Aine. In response, Cortana accidentally broke down Aine's matrix, killing her as a result while the AI believed that Aine could have accepted the opportunity to let Cortana and John-117 helping the shipboard AI.{{Ref/Generic|Id=datadrops7|Heading=[[Halo Legendary Crate]]|Subheading=[[Halo Legendary Crate/Data Drops|Data Drop #7]]|Detail=[[:File:LC 07 doc2.jpg|JUNE 21, 2557 1604:02:28 // UNSC INFINITY]]}} The conversation was recorded as the "Cyroraeth Dialogue", and the story of the functional death of Aine was kept as secret to the majority of ''Infinity''{{'}}s crew, believing the former shipboard AI was terminated upon the ''Infinity''{{'}}s impact on Requiem.{{Ref/Generic|Id=TCD|Heading=[[Halo Legendary Crate]]|Subheading=[[Halo Legendary Crate/Data Drops|Data Drop #7]]|Detail=[[:File:LC 07 doc2.jpg|THE CYRORAETH DIALOGUE]]}}

Gypsy Company, aboard a [[Mobile Anti-Aircraft Weapons Platform M510 Siegework/Ultra-Heavy|Mammoth]] and led by Commander Lasky, destroyed the first and second anti-air particle cannons. However, a Covenant [[Kmiro'sish-pattern Lich|Lich]] heavily damaged the Mammoth. Even though John-117 and a SPARTAN-IV team destroyed the Lich, the Mammoth was forced to stop when it approached a Forerunner structure.{{Ref/Reuse|rec}}

John entered the structure and, with Cortana's help, disabled the last two anti-air cannons. Cortana suddenly disappeared, so John searched the structure for her. He was taken to an archived personality of the [[Librarian]], the Didact's wife and the one who saved humanity from the [[Halo Array|Halos]]. The Librarian informed John of the Didact's plan to imprison humanity into digital form with the Composer. In doing so, she altered John-117's genes, an action that would prove itself useful when the Didact's forces [[Raid on Ivanoff Station|raided Ivanoff Station]]. John-117 returned to a UNSC convoy led by [[Master Sergeant]] [[Marcus Stacker]] and eventually reached Requiem's gravity well generator. Using targeting data provided by the Spartan, ''Infinity'' destroyed the generator.{{Ref/Reuse|rec}}

Following the destruction of the gravity well generator, the Master Chief and Cortana began to push for Captain Del Rio and ''Infinity'' to assault the Didact's Cryptum and destroy it to keep the Didact from leaving Requiem. However, Del Rio refused to believe the two, calling their encounter with the Librarian "the hallucinations of an aging Spartan and his malfunctioning AI." This was furthered when Cortana's [[rampancy]] caused her to have an angry outburst. While Del Rio ordered Commander Lasky to remove Cortana's data chip to be destroyed, the Master Chief took it instead, telling Del Rio that if he wouldn't stop the Didact, the Master Chief would do it himself. The Master Chief refused Del Rio's orders to stand down and ordered Lasky to warn Earth of the coming threat from the Didact. Lasky was then ordered to prevent the Master Chief's departure by any means necessary but recognized that it was too dangerous to risk the Chief being wrong about the Didact. Instead, Lasky had a [[G79H-TC Pelican|Pelican gunship]] prepared for full combat pursuit of the Master Chief but instead gave the dropship to the Spartan.{{Ref/Level|Id=Shutdown|H4|[[Shutdown]]}}

The Master Chief departed ''Infinity'' in the Pelican as ''Infinity'' and her crew made their escape from Requiem. Without ''Infinity's'' firepower to back them up, Cortana suggests instead disrupting the communications at two of the towers near the Didact's Cryptum which would allow her to forge an override code and lower the Didact's shields so they could reach him. Using the Pelican's cannons, the Master Chief was able to destroy the [[Ru'swum-pattern Phantom|Phantom]] dropships guarding each tower and make his way within. Inside each tower, the Master Chief fought his way through 'Mdama's determined Covenant and Promethean defenders and used an EMP in one tower to destroy a carrier wave generator and destroyed the attenuators in another tower, giving Cortana the opportunity to lower the Didact's shields. All through this, the Didact telepathically taunted the Master Chief about the futility of his actions.{{Ref/Reuse|Shutdown}}

With the Didact's shields down, Cortana suggested another course of action: reach the tower that controlled the spires surrounding the Didact's Cryptum and use the controls to encase the Cryptum in the towers and keep it from leaving Requiem. The Master Chief returned to his Pelican gunship and used it to reach the third tower, encountering no further aerial resistance along the way. Inside the tower, the Master Chief came up against a massive force from 'Mdama's Covenant defending both levels of the tower including two [[Hunter]]s and several [[Sho'riru-pattern Shade|Shade]] turrets and [[Is'belox-pattern Banshee|Banshees]]. The Master Chief was eventually able to reach the control panel where he inserted Cortana who took control of the tower system. Cortana initially moved the towers to imprison the Didact's Cryptum, but her rampancy got the best of her and instead she dropped the towers.{{Ref/Reuse|Shutdown}}

Unable to imprison the Didact any longer, the Master Chief decided to move across some nearby [[Kmiro'sish-pattern Lich|Liches]] heading for the Cryptum to reach the Didact. However, after he landed on the first Lich, the Cryptum merged with the Forerunner ship ''[[Mantle's Approach]]'' and joined a fleet heading out into space. Unable to stop the Didact from leaving, the Master Chief hitched a ride on the Lich as it followed the Didact's ship into [[slipspace]].{{Ref/Reuse|Shutdown}}

The Didact would [[Raid on Ivanoff Station|arrive]] at Ivanoff Station and despite the efforts of the UNSC, he obtained the Composer and digitized pratically everyone on the station excluding John-117, who was saved thanks to genetic augmentations provided by the Librarian.{{Ref/Level|H4|[[Composer (level)|Composer]]}} The Didact then set course for [[Earth]], with the intent of digitizing its population, but was [[New Phoenix Incident|ultimately stopped and defeated]] by John-117.{{Ref/Reuse|Midnight}}  

The UNSCDF would not return to Requiem until six months later, when the ''Infinity'' was again deployed to the shield world to establish research bases and obtain useful Forerunner technologies, resulting a [[Requiem Campaign|larger-scale but indecisive battle]] against Prometheans and Jul 'Mdama's Covenant which led the eventual destruction of Requiem along with rest of the [[Epoloch system]].{{Ref/Reuse|SOE1}}

|Unknown

File:Covenant fleet surrounding FUD.jpg|'Mdama's Covenant vessels intercepting the UNSC ''Forward Unto Dawn’s'' wreckage in ''[[Halo 4]]''.

File:2821570-gallery.jpg|John-117 fighting the Promethean constructs inside Requiem.

File:H4-E3-Campaign-6.jpg|'Mdama's Covenant forces converged toward the ''Infinity’s'' crash site.

File:H4-Shutdown.jpg|John and Cortana stayed on Requiem to stop the Didact.

*''[[Sunrise on Sanghelios]]'' {{Mo}}

*''[[Trial of Reckoning]]'' {{Mo}}