Delta Labs - Level 2b: Union Aerospace Research Division

Delta Labs - Level 2b: Union Aerospace Research Division is the seventeenth level of Doom 3. This level marks the first appearance of the Arch-Vile as well as the Hell Knight - albeit the latter being a partial specimen only. This level also introduces Dr Elizabeth McNeil to the game's storyline. While she does not make an appearance in this game (she makes her first in-game appearance in Doom 3: Resurrection of Evil), her PDA can be found in her office. There is also a Martian Buddy Cabinet in this level containing a BFG9000. It's the second time you can get the BFG9000.

PDAs

 * Francis Erison
 * Jacob Stemmons
 * Larry Bullman
 * Elizabeth McNeil

Characters

 * UAC announcer
 * Dr. Michaels
 * Malcolm Betruger (voice only)

Enemies

 * Former Humans
 * Fat Zombies
 * Flaming Zombie
 * Scientist Zombies
 * Maintenance Zombies
 * Commandos
 * Chaingun Commandos
 * Demons
 * Arch-Viles
 * Imps
 * Revenant (specimen only)
 * Hell Knight (specimen only)

Weapons/Items

 * Grenades
 * Chaingun
 * Plasma Gun
 * BFG-9000
 * Security Armor
 * Armor Shards
 * Medkits
 * BRD Key Card
 * Bullets
 * Shells
 * Clips
 * Ammo Belts
 * Plasma Cells
 * Rockets
 * BFG Cell

CDs

 * Specimen Museum
 * The Soul Cube

Cabinets and Doors

 * Cabinet #103: 259
 * Cabinet #213: 371
 * Cabinet #666: 372 (Warning: Imp inside)
 * Storage Room: 725
 * Martian Buddy Cabinet: 0508
 * Sector 3 Access: 463