Editing Requiem

{{Era|Forerunner|Post}}

|location=[[Epoloch system]]<ref name="DK H4TEVG">'''[[Halo 4: The Essential Visual Guide]]''', ''page 198''</ref>

|anchor=7<ref name="sil278"/>

|constructed=Before [[107,445 BCE]]<ref name="h4terminals"/>

|diameter={{Convert|10787|km|mi|sp=us}}<ref name="DK H4TEVG"/>

|gravity=0.987 G<ref name="DK H4TEVG"/>

|surface temperature= -38&deg;C to 71&deg;C (-36&deg;F to 159&deg;F)<ref name="DK H4TEVG"/>

|atmosphere=1.2 ([[Wikipedia:Nitrogen|N₂]], [[Oxygen|O₂]], [[Argon|Ar]])<ref name="DK H4TEVG"/>

{{Quote|The scale and brilliance of the Didact's strategic plan now appears more like the tomb of all hope—certainly of all my hopes. A dream we had both shared is little more than a repository for a Promethean long since chewed up and cast aside by history, by force of his enemies, human and Forerunner—and by the dire influence of the Flood. And yet, this enormous construct, nothing less than a completely artificial world, this bastion designed for endless war, still impresses in a way that a Halo cannot.|The [[Librarian]] reflects on Requiem near the close of the Flood conflict<ref>'''Halo: Silentium''', ''page 279''</ref>}}

'''Requiem''', formally designated by its [[Forerunner]] creators as '''Shield World 0001''',<ref name="DK H4TEVG"/> was a Forerunner [[shield world]] located in the [[Epoloch system]].<ref name="DK H4TEVG"/> It once served as the central base of operations for the [[Promethean]]s, an elite class of [[Warrior-Servant]]s, for thousands of years until the end of the [[Forerunner-Flood war]]. It remained sealed off for a hundred millennia since the end of the war,<ref name="h4guide">[http://www.halowaypoint.com/en-US/halo4guide '''Halo 4 Interactive Guide''']</ref> and became the site of [[Battle of Requiem|major events]] as [[United Nations Space Command|UNSC]] and [[Jul 'Mdama's Covenant]] forces stumbled upon it in [[2557]]. The {{UNSCShip|Infinity}} returned to Requiem in early [[2558]], resulting in a [[Requiem Campaign|protracted battle]] between the UNSC and the occupying Promethean-Jul's Covenant alliance.<ref name="departure">'''[[Spartan Ops]]''', ''[[S1/Departure|S1E1 Departure]]''</ref> Requiem itself was [[self-destruct|destroyed]] at the conclusion of this campaign by [[Jul 'Mdama]].<ref name="Exodus">'''Spartan Ops:''' ''[[S1/Exodus|S1E10 Exodus]]''</ref>

===Forerunner era===

[[File:H4 - L&D tacdisp.jpg|thumb|left|250px|The [[Didact]] and the [[Librarian]] in Requiem's war room.]]

Built as the template for the [[Ur-Didact|Didact]]'s [[shield world]] [[Star-hopping|defensive strategy]], Requiem was constructed long before the [[human-Forerunner wars]] to serve as a fortress world for the [[Warrior-Servant]]s' Promethean class. As with the shield worlds which would follow, Requiem's true capabilities were kept as secret as possible from the other [[rate]]s; although its components were constructed by the [[Builder]]s, the process was compartmentalized in a way that only the Prometheans would be fully informed of its ultimate configuration.<ref name="sil278">'''[[Halo: Silentium]]''', ''pages 278-279''</ref>

Requiem was a central hub for all Forerunner forces and war efforts for thousands of years, from the conflict with [[prehistoric human civilization|ancient humanity]] to the end of the [[Forerunner-Flood war]].<ref name="h4guide"/> Upon his recovery from the clutches of the [[Gravemind]] near the end of the conflict with the Flood, the now mentally unstable [[Ur-Didact]] returned and reassumed control of Requiem. In his vision, Requiem was to serve as a core of a new era of prosperity and power to the Forerunners through the defeat of the Flood and the subjugation of all their enemies. To this end, the Didact used the [[Composer]] to convert his loyal Warrior-Servants into powerful robotic [[Promethean Knight|Knights]]. Despite his grand plans, relatively few of his Warriors joined him: in addition to the Didact's flagship, ''[[Mantle's Approach]]'', only one [[Fortress-class vessel]], several [[Forerunner dreadnought|dreadnoughts]] and scrapped Builder vessels were present at Requiem during the endgame of the war.<ref name="s281">'''Halo: Silentium''', ''page 281''</ref>

After the Ur-Didact used the Composer to enslave [[Omega Halo]]'s human population to use them to create more of his Knight constructs, the [[Librarian]] imprisoned the Didact in a [[Cryptum]] in the core of the shield world to stop him.<ref name="h4terminals">'''Halo 4''', ''[[Terminal/Halo 4|Terminals]]''</ref> The Librarian [[Mind transfer|uploaded]] a [[Librarian's Rest|personality impression]] of herself within Requiem's systems,<ref name="Reclaimer">'''Halo 4 -''' ''[[Reclaimer (level)]]''</ref> placing the [[Janus Key]] in the possession of this imprint.<ref name="Key">'''Spartan Ops:''' ''[[S1/Key|S1E9 Key]]''</ref> The Librarian then departed Requiem and sealed the shield world off for the next 100,000 years.

[[File:Planet 1.jpg|thumb|right|250px|The {{UNSCShip|Forward Unto Dawn}} entering Requiem via an access portal.]]

On [[2557#July|July 21, 2557]], the severed aft section of the {{Class|Charon|light frigate}} {{UNSCShip|Forward Unto Dawn}}, containing [[John-117]] and [[Cortana]], drifted near Requiem and were forcibly pulled inside an automated entrance portal on its surface, along with a number of ships from a [[Covenant remnants|Covenant remnant]] [[Covenant Fleet|fleet]] and later, the prototype starship {{UNSCShip|Infinity}}.<ref>'''[[Halo 4 E3 2012 Stage Demo]]'''</ref> Inside, they encountered hostile [[Promethean]] forces that occupied the structure, and unwittingly released the Didact.<ref name="waypoint">[http://halo.xbox.com/en-us/games/overview/halo4 '''Halo Waypoint''': ''Halo 4'']</ref> The humans battled their way through the world, destroying its [[Gravity well|gravity well generator]] so the ''Infinity'' could escape. The ''Infinity'' escaped from the shield world, and despite the best efforts of the [[John-117|Master Chief]] and [[Cortana]], the Didact escaped as well to go after the [[Composer]], chased by the two in a [[Lich]]. Six months later, the ''Infinity'' returned to Requiem in order to establish research facilities to study the installation, facing both the local Prometheans and Jul's Covenant forces which still occupied the structure.<ref name="departure"/>

[[File:Requiem destruction.png|thumb|right|250px|UNSC ''Infinity'' fleeing the flare emitted immediately after Requiem's collision with Epoloch.]]

In February [[2558]] Jul 'Mdama, believing to have obtained the [[Janus Key|artifact]] they sought, implemented a local [[Flood]] [[containment protocol]],<ref name="CatalogContainment">[https://forums.halowaypoint.com/yaf_postsm2994218_Catalog-Interaction.aspx#post2994218 '''Halo Waypoint''': ''Catalog Interaction'' (post 2994218)]</ref> placing Requiem on a collision course with its parent star, Epoloch, in effect setting Requiem to [[self-destruct]]. With the ''Infinity'' anchored to the planet via a slipspace conduit generated by a [[Requiem slipspace artifacts|Forerunner artifact]] on board, Fireteams [[Fireteam Majestic|Majestic]] and [[Fireteam Crimson|Crimson]] were sent to deactivate two artifacts on Requiem that kept the ship anchored, while [[Henry Glassman]] deactivated the third one aboard the ''Infinity''. After many complications, both fireteams reached their objective and the ''Infinity'' was able to flee the planet,<ref name="Exodus"/> seconds before Requiem was consumed by the sun, which went [[supernova]] immediately afterward due to a total failure of local plasma shell maintenance systems as well as Requiem's containment measures.<ref name="CatalogContainment"/>

[[File:Halo4-Cortana-RequiemCore.jpg|thumb|right|300px|[[Cortana]] observing the core of Requiem.]]

The most resilient shield installation built by the Forerunners, Requiem consisted of multiple concentric planetary shells enclosed within one another, sealed inside an enormous outer shell.<ref name="h4guide"/> The outermost surface was an armored covering enveloping the second shell, which was oriented like that of a planet and housed the world's primary terrestrial environment. [[Core of Requiem|Requiem's core]] was located below this planetary surface, and had a surface reverse to that of the terrestrial exterior, similar to a miniaturized [[Dyson sphere|Dyson shell]].

Requiem's outer surface was a thick metallic shell lacking a terraformed surface and covered in patterns and layers of machinery and overlapping armor plating hundreds of kilometers thick; the first 50 kilometers were to feature weapon emplacements by the thousands, but these plans were never realized due to the Didact's exile.<ref>'''Halo: Silentium''', ''page 282''</ref> The surface was also covered in a number of lights; some of these formations took on geometric patterns, such as circular orientations or arrays of lines. Amongst its complement of luminous formations were two enormous symbols; the Eld, (which represents the [[Mantle]]), as well as the [[Reclaimer]] glyph. Unlike some shield worlds constructed later on, Requiem did evidently not possess shielding against the effects of the Halo Array; the Didact was only protected by the [[slipspace bubble]] generated by his [[Cryptum]].<ref name="Bulletin924">[https://blogs.halowaypoint.com/en-us/blogs/headlines/posts/the-halo-bulletin-9-24-14 '''Halo Waypoint''' - The Halo Bulletin: 9.24.14'']</ref>

[[File:H4-Req Map.png|thumb|right|300px|A holographic representation of Requiem.]]

The interior of the facility was unique relative to the other known shield worlds; rather than housing an artificial star at its center, surrounded by a habitable inner surface, the exterior shell housed additional layered shells, the outermost of which had an environment resembling a terrestrial planet. Another important feature was that immediately above the cloud layer of the protected second layer, the interior surface of the protective shell was visible. This was demonstrated by the sky being dominated by the machinery above it, with large, vertical structures reaching down to the surface below. Numerous small artificial stars provided illumination for Requiem's interior.<ref name="sil283">'''Halo: Silentium''', ''page 283''</ref>

A readily seen feature of this construct is that it harbored a number of large circular entrance portals, with iris-type opening mechanisms. When opened, a vibrant, blue-white light could be seen emanating from the interior. These portals featured the ability to generate artificial [[Gravity well (physics)|gravity well]], drawing in objects in the immediate vicinity if the presence of [[Reclaimer]] is detected. These gravity wells were powered by generator complexes situated somewhere on the inner planetary shell.<ref>'''Halo 4''', campaign level ''[[Reclaimer (level)|Reclaimer]]''</ref>

The next known aspect of this facility is that it possessed fully active and functioning technology, unlike other Forerunner sites, which have largely been abandoned and dormant,<ref>[http://www.youtube.com/watch?v=JD429ZWcQ_w '''YouTube''': ''Halo Fest: Halo 4 Panel'']</ref> with the exception of [[Trevelyan|Shield World 006]]. Examples of such active technology included enormous spires suspended in the air without visible support and structures capable of shifting and reconfiguring themselves, extensive use of sophisticated [[hard light]] construction to create structural elements, or the Prometheans' various weapon and equipment caches found across the shield world.

Designed to wage continuous war for eons if necessary, Requiem was completely self-sustaining. It was orbited by seven captured planetoids, covered in ice, which could be strip-mined for resources, allowing its occupants to survive and carry out their campaigns potentially for millions of years. Like most Forerunner technology, Requiem drew its power from [[vacuum energy]], with pylons across the structure tapping into numerous nascent alternate universes and draining them of energy.<ref name="sil278"/> Large regions of the terrestrial interior were kept dormant, with the landscape covered in mineral-rich ice, to be melted down to create more refuges for Forerunners and other species in the event of an extended campaign.<ref name="sil283"/>

*[[Galileo Base]]

*Many [[Huragok]] know that Requiem is home to the Didact. However, they do not know its location as a security measure. <ref>'''Halo: The Thursday War''', ''page 115''</ref>

*Prior to ''[[Halo 4]]'', Requiem was known among fans as the ''Legendary Planet'', referring to the planet's first appearance in ''Halo 3''<nowiki>'</nowiki>s Legendary difficulty-exclusive ending. Requiem also appears in a small image in the ''[[Halo Encyclopedia]]'', where it is shown to have a reddish-orange color on a small illuminated section.<ref>'''[[Halo Encyclopedia]]''', ''page 279''</ref> The planet appears again in the [[Awakening|''Halo 4'' announcement trailer]], where the aft half of the ''Forward Unto Dawn'' is seen being pulled into a massive, iris-like opening on its surface.<ref>[[Awakening|''Halo 4'' Announcement Trailer]]</ref><ref>[http://www.gametrailers.com/video/e3-2011-halo-4/714846 '''GameTrailers''': ''E3 2011: Halo Returns Interview (Stream) HD'']</ref> The planet was finally identified as "Requiem" in the May 2012 issue of the ''GameInformer'' magazine.<ref name="gameinformer">'''Game Informer''' ''(May 2012)'', ''page 44-45''</ref>

*Requiem is designated as "43121124" by the holographic terminal displaying the ''Dawn'''s predicted drift course.<ref name="Dawn"> '''Halo 4''', campaign level ''[[Dawn]]''</ref>

*''[[Halo 4: The Essential Visual Guide]]'' and the shield world's in-game appearance in ''Halo 4'' seem to indicate that Requiem has only one entry portal, referred to as the "maw corridor" in the visual guide.<ref name="DK H4TEVG"/> Despite this, the ''Halo 4'' terminals and ''Halo: Silentium'' portray Requiem as having a number of access corridors.<ref name="s281"/> It is possible that the other portals were sealed off with Requiem when the Didact was placed into stasis, likely as a safeguard against the Halos' activation.

File:H3 Requiem Symbols.png|Symbols Seen On Requiem's Surface includng the [[Eld]] and the Septagon.

File:HM-Prometheans.png|Requiem in ''[[Halo Mythos]]''.

File:Halo_4_cathedral_bridge_concept_art.jpg|Concept art of a cathedral.

File:H4_Iris_Concept_3.jpg|The ''Dawn'''s debris field floating near Requiem.

File:Halo4conceptart6.jpg|Early concept art of Requiem, with floating boulders instead of spires.

**''[[Halo 5: Guardians Limited Edition|Limited Edition]]'' {{Mo}}

{{Forerunner}}

[[Category:Forerunner worlds]]