Erebus - Level 5: Erebus Research

Erebus - Level 5: Erebus Research is the fifth level of Doom 3: Resurrection of Evil. Player gets chaingun, and uses environmental suit to encounter a toxic maze.

PDAs

 * Leo Avery
 * Sean Gibson

Characters

 * Dr. Elizabeth McNeil
 * Dr. Cloud

Enemies

 * Former Humans
 * Skinny Zombies
 * Maintance Zombies
 * Bio-Suit Zombies
 * Demons
 * Imps
 * Vulgars
 * Cherubs
 * Maggots
 * Mancubi

Weapons / Items

 * Grenades
 * Chainguns
 * Medkits
 * Armor Shards
 * Security Armor
 * Bullets
 * Clips
 * Shells
 * Keycard
 * Ammo Belts
 * Sees

Trivia
In Doom 3 BFG Edition, the helmet is removed at the surface entrance, the player can then now enter the surface without suffocating. In addition, Bio-Suit Zombies do not drop tanks when killed.