This level occupies the map slot MAP01. For other maps which occupy this slot, see Category:MAP01.
MAP01: Ventilator is the first map of Community Chest 3. It was designed by Mike Alfredson (Use3d) and uses the Duke Nukem 3D music track "Water World."
Letters in italics refer to marked spots on the map. Sector numbers in boldface are secrets which count toward the end-of-level tally.
Secrets[]
In the hallway leading to the shotgun and the exit door, there are two parallel collections of metal panels. The northern one, instead of two long panels, features a large, grilled panel. Press it, and it will lower, allowing access to five armor bonuses, two stimpacks, and a box of shells. (sector 469)
In the first area, after generating the rock stairs and climbing them, there are multiple elevator platforms that do not function. The northernmost one, however, does. Pushing it will cause it to lower; behind it are two stimpacks, armor, and 8 shotgun shells. (sector 441)
When you reach the blue key switch, activating it will also cause an alcove full of enemies to open. Approaching the switch will cause a door to open within that alcove on its northern side, but only briefly. Run through the door before it closes, and you will enter a tunnel with twelve health bonuses, a shotgun and a box of shells next to a dead shotgun guy, two stimpacks, armor, and a supercharge. Stepping on the ground where the munitions and corpse rest will register this secret. (sector 486)