To register secret #1, however, it is still necessary to activate and walk through (from either side) the differently-colored wall described below.

These new doors were likely added to improve gameplay in deathmatch mode since they provide two extra ways to reach the rocket launcher. As a player walks through this door, another large door will open up, making it possible to get to the courtyard from the computer room. The north pillar has a switch ( E) which opens up a door to the courtyard ( F) with the blue armor and, in multiplayer mode, a rocket launcher. In the alcove leading to the green armor, there are two pillars. They can cause quite a bit of damage due to their awkward positions, but on the positive side killing them gives you an early shotgun. If you play on Ultra-Violence or Nightmare!, watch out for the sergeants that guard it there are two by the armor and one behind each of the pillars by the staircase. To the left of the start room is a platform with green armor on a pedestal ( K). Go through the door on the far side, then through the exit door into the final room ( D). Proceed through this room and through a short passage, and you will enter a large room with a nukage pool across which goes a zig-zag bridge ( C). From the start point ( A), walk forward across the blue floor, turn right, and go through the door into the central computer room ( B). There are no keys in this map, so you can go directly to the exit. Sector numbers in boldface are secrets which count toward the end-of-level tally.

Letters in italics refer to marked spots on the map.

Knee deep in doot