Added more verts to the navmesh so the zombies would path better.

Fixed the door to the teleporter room.
Added blocks under the ramps to stop players from hiding.
Increased zombie health and balanced zombie spawning.

OK, now the wall buys are working. I had to remove some... so good luck with the box!

Fixed some bugs with the wall buys that wasn't letting the map to open.

Added teleport to hell, got to terminal and press F.

Fixed floor.
Fixed Mystery Box.
Added song to RoF.