Doom/E2M4: Deimos Lab

Walkthrough


From the start, head to the teleport in front of you. There is one secret in this location, but the shotgun located there can be collected in the next room.

After teleporting, you can head north to collect a medikit and shells, as well as to approach some equipment in the cage. However, you will have to head west towards the nukage ring.

You can collect invisibility and green armor from the north edge of the ring. Otherwise, head west.

From the blue corridor, you can optionally head north. A few medikits and green armor can be found here, as are several monsters. To exit, flip the switch on the left side of the room. Watch for a crushing ceiling trap in the center, marked by corpses on the ground.

Continue west along the blue corridor, heading to the south. Open the door and go in the room containing a Baron of Hell. Flip the switch visible to lower the lift; ride up it and collect the blue key. You can press the switch on within the area to access some ammo in the area to the right.

Return to the second junction in the blue corridor and head north. You can find a backpack in the path to the west (guarded by a cacodemon), but will need to head through the north blue-key door.

In this red room, you will encounter a second Baron of Hell, and see the yellow key. This yellow key has a weaker crushing ceiling, and has two sargents hiding behind the pillars to the north. Run across the area to get the key, and exit by the east door.

When you reach the ring room, you can either enter by the north, or take a branch to the north-east to collect a few items.

In the center of the ring, enemies will be in the northwest and north-east alcoves, including Barons of Hell. They will be released as soon as you start climbing the stairs (whether or not you raised them by the switch). When you reach the top, run across the floor grate to open a south exit in the room. Head back down the stairs and exit to the south.

In the final room, head south, jump into the nukage and make a hard left turn. Flip the switch on the wall to raise the path to the exit. Enter the teleporter, and re-enter the teleporter that you exited from. Walk across the raised platform to reach the exit, where two imps hide to make one final attack.

Shortcuts

 * It's faster reaching the exit by taking the plasma gun secret in the outer ring; head to the eastern part, fall down and take the teleporter.

Secrets
There are 10 secrets on this map.
 * 1) At the beginning of the map, open the illuminated wall on the right for a shotgun. (Sector 188)
 * 2) After teleporting from the start, head forward up the lift and reach the end.  Rub against the short red pillar with the skull to lower the barrier (hiding a computer map and green armor) and a door behind it.  Enter the darkened area with the ammo boxes to claim the secret. (Sector 16)
 * 3) In the large nukage ring, head around the south loop to open a door on the north edge (the exact trigger is just after the south-east exit, before the east-west wall.  This area has a soulsphere and ammo, but is guarded by Demons and spectres. (Sector 10)
 * 4) Just after the large nukage ring is a darkened path.  Head north, and either shoot the eastern wall, or shoot into the crushing ceiling area of the lit room.  In either case, this alerts the nearby monsters. Contains a chaingun and invisibility. (Sector 120)
 * 5) At the blue key card, press the nearby switch and go past the lowered floor. At the end of the corridor past the crushing ceilings and chasm, you can find a radiation suit and some ammo.  These are nice, but the secret is the berserk pack in the south-west corner of the nukage pit. (Sector 165)
 * 6) The north-east exit of the large ring leads to a room overlooking lava nukage. On the left side just against the drop is a platform with two medikits. (Sector 36)
 * 7) In the same lava room, head through the west-most door, and cross the nukage pit to reach blue armor. (Sector 107)
 * 8) Accessible from the sector 36 route, or only going half-way through the corridor leading to Sector 107 (just before the corridor expands into a room.  Contains ammo, but don't pause at the entrance of the room because of a crushing floor.  To exit, take the door on the left.  (Sector 53)
 * 9) At the large outer ring near the end of the level, fall down a pit on the right side. Open the door to reveal a plasma gun.  (Sector 19)
 * 10) At the exit, you must first raise the platform leading to the exit. Then, walk onto the exit door.  Turn around, and you can collect the soul sphere.  (Sector 182)

Multiplayer
The only added weapon is a rocket launcher added to the center of the large room past the yellow door. However, you can also find a backpack in the nukage ring secret, and some additional medikits in the north-east corner.