Enpro Sector 1

Enpro Sector 1 is the first level of The Lost Mission. The pistol, rifle, and shotgun are first available here. The zombies, Z-sec, Commando, Wraith, and Imp make their first appearance in this level.

Summary
The mission starts with a cutscene from the original Doom 3 showing the ill-fated Bravo Team falling under an ambush from Wraith's and Imp's. The camera soon cuts away to show a Marine's legs hanging out of a small vent, before being quickly dragged inside by an unknown monster. The Marine then wakes up, alone and surrounded by dead UAC personnel.