A pair of wire conduits act as ladders between the levels. An empty cardboard box provides some hiding spots as well as a ramp to get up to the next level. The overall layout is very good with lots of intersections where several paths cross or combine. The lighting was done well. The map has the shadowy feel that the inside of a wall should have.
Light comes in through cracks and openings in the walls and ceilings.
The shadows are dark, but visibility is still good, meaning no pitch black areas. Texturing was done in a believable manner. Everything looks like you would expect it to. Nothing overly exciting or really intricate, but then again the inside of a wall wouldn't be any ways. All the weapons except for the egon are available.