Command Site Citadel

''"Its been our home for the past six months, without the sentinels guiding us here and protecting us ever since... those Prometheans would have had us by now." -Spartan Chandler regarding Command Site Citadel ''

Background
When the UNSC Infinity arrived at Requiem for he first time in 2557 captained then by Del Rio, Fireteam Thermal was ordered off ship mid crash to assess the apparently hostile forerunner planetoid and to secure the Infinity's crash site from potential aggressors. Overwhelmed by Promethean forces Thermal team was forced into the array of portals scattered across Requiem and eventually found themselves being lead by friendly sentinel forces to Citadel. The team hunkered down and with the help of the sentinels defended the site until Infinity's return in 2558. When the UNSC Call to Valor arrived to replenish and begin offloading supplies and marine detachments Citadel became the forward operating base groundside for the far side of Requiem.

Command Site
As a command site for ground operations on the far side of Requiem Citadel was largely secure from Jul Mdama'sprimary ground force. Promethean forces plagued the landing teams but establishing research and military bases went largely uninterrupted for an extensive amount of time. Citadel offered a secure and defendable center for intelligence and coordination with newly established UNSC sites on Requiem.