Mars City: Union Aerospace Corporate Division

Mars City: Union Aerospace Corporate Division is the third level of Doom 3. The same level as Mars City, but after the demon invasion. The marine is given his mission to link up with Bravo Team in this level. This is where the demo ends.

Characters

 * R. Roland
 * Sergeant Kelly
 * UAC announcer
 * Specialist Wilson

PDAs

 * Marcus Stanton
 * Marcus Caseon
 * Bill Tyson
 * Duncan Mathews

Cabinets/Door Codes

 * Cabinet #017: 347
 * Mars City Armory: 584