From Halopedia, the Halo wiki
Cairo Station MAC Storage
Cairo Station's MAC Storage area was located below Armory A-01. During the Battle of Earth, John-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 armory Master Gunnery Sergeant's death at the hands of another pair of Sangheili. He killed these two Sangheili and moved on to Commons B-01.
List of appearances
- Halo 2, campaign level Cairo Station