MAC Storage

MAC Storage is a generic United Nations Space Command term for either of the two areas on an Orbital Defense Platform, between the armories and Firing Control where MAC rounds are stored.

Cairo Station MAC Storage
Cairo Station MAC Storage refers to the area below Armory A-01 where MAC rounds are stored. During the Battle of Earth, SPARTAN-117 went through MAC Storage to get to the Armory, killing two Stealth Sangheili on the way. He arrived at the Armory just in time to witness the unnamed Master Gunnery Sergeant's death at the hands of another pair of Sangheili. He killed these two Elites and moved on to Commons B-01.