E2M1: Deimos Anomaly (Doom)

E2M1: Deimos Anomaly is the first map of The Shores of Hell in Doom.

Walkthrough
Go past the teleporter to get the blue keycard. Come back and teleport.

Go around and take the next teleporter. Walk forward and click the skull switch on your left (south) to lower the wall ahead.

Go west and then around to your left to the blue door. Go through and teleport.

Go nearly to the far wall, then turn around to see a red switch on your left facing southeast. Click it to raise some stairs just beyond. Go up the stairs and click another red switch. This opens up a teleporter back near the first switch.

Teleport yet again. Walk forward to lower the wall in front of you and reveal the exit door.

Records
The Compet-N records for the map are: