![doom 2 map 10 doom 2 map 10](https://static.wikia.nocookie.net/doom/images/4/4c/MAP10_map.png)
Shoot the back wall to open a secret area behind it, containing a soul sphere (I). The first of such is located on the north wall of alcoves, near the northeast corner of the room. However, others have a single large UAC logo. The back wall of most of these alcoves has four small UAC logo panels. In the northeast corner of the map is a large chamber with several silver alcoves in the walls.In the last two rooms be aware of the Cyberdemon on the other side of a barred window (H). Continue through one last hallway, through the exit door, and flip the end switch. Proceed through another short room and through the blue door (G). Clear the area of enemies, then head through the yellow door in the southwest corner (F). Once back outside, enter the round central room via the passage in the wall at about the midpoint of the outdoor area (E).Ĭontinue through the door to the south into another dark room. If the wall containing the blue key closes, you can open it manually. Climb the stairs and the wall in front of you will open, revealing a blue keycard (D). Go through either of the tunnels at the north end of this room and you'll reach a stairway leading into a brightly lit alcove in the wall. The next room is very large and dark, and is home to several Imps, Revenants, and Arachnotrons. Make your way to the opposite end of the long outdoor area and open the door there. One of the alcoves in the southeastern end of this room contains a yellow key (C). The next room is dark and contains several silver alcoves and holds dozens of zombies (B) (utilizing monster infighting and weapons with splash damage will help you survive this room). Continue through this room and out the opening leading outside.
![doom 2 map 10 doom 2 map 10](https://doomwiki.org/w/images/2/2a/DOOM64_MAP10_MAP.png)
![doom 2 map 10 doom 2 map 10](https://tcrf.net/images/4/4e/Doom2-earlyarach01.png)
You can lower the vine-covered column here to reveal a chaingun and stimpacks as well as a few Spectres. Continue down the stairs and relatively straight through the opening in the stone wall. Right at the start of the level, open the blue-triangled wall ahead and to the right (A).