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.
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.
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".