Editing Command Spire

{{Era|Forerunner|Post}}

 

[[File:HINF Command Spire Observation Platform.png|300px|thumb|The Command Spire's Observation Platform.]]

During the [[Installation 07 conflict]], the [[Banished]] and the [[Harbinger]] sought to utilize the [[Reformation]] to restore the [[Silent Auditorium (location)|Silent Auditorium]], which had been destroyed when [[Cortana]] sacrificed herself to stop [[Atriox]] from gaining control of [[Zeta Halo]]. On [[2560#May|May 28, 2560]], the Harbinger kidnapped [[Despondent Pyre]] and extracted her [[encephalon]]. Using the [[Forerunner]] routines contained within Despondent Pyre's encephalon, the Harbinger constructed a protocol{{Ref/Quest|HI|Connections|Spire (Halo Infinite level)|Quote=This structure has been activated using a protocol that's far older than anything I've ever seen.|Quotee=The Weapon}} which she used to summon dozens of Reformation Spires across the fragmented section of Zeta Halo, including the Command Spire.{{Ref/Quest|Id=Conservatory|HI|Connections|Conservatory}} The Spires still required an initialization sequence to become fully activated,{{Ref/Quest|HI|Connections|Spire (Halo Infinite level)|Quote=Soon the sequence will be sent and the Reformation can begin.|Quotee=Adjutant Resolution}} so the Harbinger traveled to the Command Spire to personally initiate the Reformation.{{Ref/Reuse|The Sequence}} However, because the protocol she'd used to summon the Spires wasn't entirely correct, the Spire network resisted her attempts to start the Reformation.{{Ref/Quest|HI|Connections|Spire (Halo Infinite level)|Quote=The protocol that triggered all this wasn't exactly correct. It worked... well, it started the process.|Quotee=The Weapon}}

Meanwhile, [[Master Chief Petty Officer|Master Chief]] [[John-117]] and his [[Artificial intelligence|AI]] companion, [[The Weapon]], entered the Reformation Spire nearest to the [[Conservatory (location)|Conservatory]], where they had first [[Conservatory|encountered]] the Harbinger. After learning of the Spire's purpose, the [[Spartan-II program|Spartan-II]] ordered the Weapon to shut it down. In response, Zeta Halo's Sub-Monitor, [[Adjutant Resolution]], who was unaware of the Harbinger's true intentions, deemed the pair a threat to the Reformation and attacked them. After the Chief defeated Adjutant Resolution, the Weapon discovered that multiple Spires were being deployed. She also discovered that the Harbinger was attempting to activate the Spire network from a remote location, but that the Spires were resisting the latter's efforts because the protocol used to summon them was only partially correct. The Weapon managed to remove the Spire she and the Chief were standing on from the network, as well as trace the source of the activation attempts to the Command Spire, though she inadvertently revealed her presence to the Harbinger in the process.{{Ref/Quest|Id=Spire|HI|Connections|Spire (Halo Infinite level)}}  

After the [[Spartan Killer]]s [[Hyperius]] and [[Tovarus]] [[Pelican Down (Halo Infinite level)|failed]] to kill the Master Chief, the Harbinger instructed [[Escharum]] to have his forces protect the Command Spire while the Reformation was underway.{{Ref/Quest|Id=Pelican Down|HI|Graveyards|Pelican Down (Halo Infinite level)}} She also sought to learn more about the Spartan's ally. When the Chief and the Weapon arrived at the Command Spire, they discovered that the Harbinger had altered the Forerunner sequence needed to open the door at its base, making entry impossible. The sabotage forced the Chief and the Weapon to reconstruct a pure version of the sequence by gathering data from a network of nearby [[Forerunner]] [[beam emitter|communication beacons]]. During this time, the Harbinger spied on the Weapon and determined she could utilize the [[UNSC]] [[Artificial intelligence|AI]]'s routines in conjunction with those from Despondent Pyre's encephalon to break through the Spire network's resistance.{{Ref/Reuse|The Sequence}}

After reconstructing the Forerunner sequence and opening the door, the Weapon determined that in order to get into the Command Spire itself, they would first have to descend into the Nexus below and access its gravity lift. The Chief fought his way to the Nexus's central chamber and restored powered to the lift. When the Weapon tried to activate the lift, the Harbinger sprung a trap and hacked the Weapon, intent on using her to start the Reformation. The Weapon, in turn, used her link to the Harbinger to try to steal Despondent Pyre's encephalon. Despite the Master Chief's attempt to delete the Weapon - an effort which the Weapon herself stopped - both the Harbinger and the Weapon succeeded in their respective goals. The Weapon reactivated the Nexus's gravity lift and the Chief rode it into the Command Spire.{{Ref/Reuse|Nexus}}

Within the Command Spire, the Master Chief witnessed the Reformation at work as the facility's machinery produced building blocks from pure energy. He battled numerous [[Banished]] troops, [[Skimmer]]s, and [[Aggressor Sentinel]]s as he made his way to the top, before eventually reaching the elevator that would take him to the Observation Platform. There, he encountered Adjutant Resolution who had survived their initial confrontation. The Sub-Monitor, now equipped with an improved battle chassis, tried to stop the Spartan, but the Chief defeated him again. He then took the elevator to the Observation Platform, where he fought and defeated a trio of [[Banished Phantom]]s. The Chief then deployed the Weapon, who used Despondent Pyre's encephalon to shut down all the Spires and end the Reformation.{{Ref/Reuse|The Command Spire}}