They May Be Slow

Monster(s): Headless (knife, guns); Zombie (guns)

Saving Zone(s): 2 - NW corner and NE corner.

Ladder(s): 3
NW, NE corners: up to But They're Hungry
S center: down to Lock&Load

Objectives: 
Dead German Soldier (Hans) between center and S.
Small Ammo dump in a room full of bones near center.
Dead German Soldier in a room near N center.
Blue Crystal behind a secret/hidden wall section in the room of the above Dead German Soldier.
Silver Bowl in a room near the Blue Crystal room.

Problem(s): Blue Crystal behind a secret/hidden wall section.
Solution(s): Walk through the wall.