This article about a map is a stub. Please help the Doom Wiki by adding to it.

Doom 3 maps

Alpha Labs - Sector 1: Union Aerospace Science Division is the fifth level of Doom 3. This part of Alpha Labs houses the Elemental Phase Deconstructor, a device which can extract useable resources from raw Martian materials through a destructive process. The Marine will have to go through the Elemental Phase Deconstructor and avoid its laser in this level. Note you can't backtrack when you jump into the Elemental Phase Deconstructor room, nor when you exit its laser tunnel. In addition, Maggots are introduced midway through the level in a rather gory cutscene.


Video Disks

  • Elemental Phase Deconstructor
  • Hydrocon



Monster Count
Imp 13/13/18
Maggot 13/13/17
Zombie 20
Fat Zombie 3
Machinegun Z-Sec 10/10/12
Pistol Z-Sec 1
Shotgun Z-Sec 4
Weapon Count
Shotgun 7
Machine Gun 5
Grenade pack 4
Ammunition Count
Pistol ammo (small) 3/3/2
Shotgun shells (small) 7
Shotgun shells (large) 1
Machine Gun ammo (small) 12/12/11
Machine Gun ammo (large) 4
Misc. items Count
Small medkit 9
Large medkit 14/14/9
Armor shard 37/37/32
Security armor 10/10/8
Video disk 2
  • For cells of the form x/y/z, x corresponds to Recruit difficulty, y to Marine, and z to Veteran/Nightmare.
  • Items that can only be acquired by using console commands are excluded.

Cabinet Codes

  • Storage Cabinet #009: Supplies - 752


Shortly after exiting the Elemental Phase Deconstructor, Marine arrive in a dark room and corridors, where he must turn down the gas to shut down leaking flames. The music played here, Scape 1, has some similarities with Doom 64 music used in the level "The Bleeding".