Big, with no ammo and a few exploboxes.

Large, no ammo, you pretty much have to use a few below the belt tricks (I.E., letting monsters kill each other, try to "axe" them behind a corner etc.). It is doable, and not entirely unfun, until the end, where the map drops the ball by having you go around pitch black tunnels that need to be lighted using muzzle flash from your weapon. I just hate that kind of crap.

Challenging map. Makes you think twice before going in the next room and forces you to use infighting/axe because of low ammo. I actually liked this map despite simple design.