MAP04: Alpha Sector (Disrepair)

MAP04: Alpha Sector is the fourth map of Disrepair. It was designed by Andrea Rovenski (Cyberdemon531) and uses the music track "Death & Decay" by John Weekley (PRIMEVAL) (from Unholy Realms).

Essentials
After clearing out the main room, press the switch in the red-walled room to reveal the yellow key. Collect it, whilst remaining vigilant for newly spawned-in monsters. Fend off the suicide bombers, Hell knights and cacodemons inside the yellow doorway room, and press the button to lower the path to the red key. From there, head to the red door, be wary of the troll trap as you activate the exit door, and press the newly-revealed switch to truly open the exit.

Secrets

 * 1) Pressing the switch to reveal the yellow key also lowers a wall back at the starting point of the level. Travel back there to find a backpack. (sector 210)
 * 2) After uncovering the false exit, press the wall behind the hanging marine to find a passageway leading out to a soulsphere and a rocket launcher. (sector 165)
 * 3) At the exit to the map, instead of pressing the switch inside the train carriage, instead run east, down the tracks, to find a megaarmor.  (sector 185)

Routes and tricks
At the top of the stairs, straferun onto the tan crates using a small green crate. From there grab the red key, skipping the need to pick up the yellow key.

Current records
The records for the map at the Doomed Speed Demos Archive are:

Things
This level contains the following numbers of things per skill level:

Trivia
The map is revisited in the Disrepair 2 map Disrepair (Disrepair 2).