Some kind of locker room or armory for the security forces here. Some of the lockers were locked, but they weren't too difficult to break open. Lots of heavy tactical gear, like what SWAT might need and then some.

Marcus found one of the tactical jackets that fit him reasonably well, and proceeded to strip out of the vest and coat he was wearing in favor of putting on the tactical vest and putting the things he'd acquired into place. He was lucky enough to find some heavier weaponry as well, though not much in the way of ammo for it.