V1_4: Lifted the pistons off the ground 5 units, so they don't catch on someone's dead weapon and go super-mode for a few seconds. Although, a chainsaw will catch on it, still. The office drink machine now dispenses bandages instead of cans.

v1_3: fixed the respawns being too close to the ground and not spawning, added children zombies

v1_2: fixed the respawns, grenades are no longer blocked by vphys clips

v1_1: fixed the valves and pistons. Added some glowsticks for clarity. Fixed the ending and added a teleport for those not in the room.