The only exceptions are the Chainsaw, Soul Cube, and the Artifact, which don't appear in the campaign (the hand-held flashlight also does not appear, due to having been removed from the BFG Edition). The Lost Mission includes almost all of the weapons from Doom 3 and Resurrection of Evil, including the Grabber Gun and double-barrel shotgun.

Exis Labs - Sector 2: Union Aerospace Research Division.

Exis Labs - Sector 1: Union Aerospace Research Division.

Underground - Sector 2: Mars City Service Sub-Level.

Underground - Sector 1: Mars City Service Sub-Level.

Enpro - Sector 2: Energy Processing and Storage.

Enpro - Sector 1: Energy Processing and Storage.

The Lost Mission consists of 8 new levels, mirroring the 8 level mission structure of each act of the original Doom (minus the 9th secret level). To achieve this goal, the marine must acquire the components necessary to activate the Exis Labs teleportation system, then travel to Hell in order to destroy the teleportation array. The array is potentially powerful enough to send an army of demons all the way to Earth, hence Meyer's desperation to destroy it. Richard Meyers, a scientist working on teleportation experiments in Exis Labs, and asked to help Meyers destroy an experimental teleportation array that was captured by the demons and is currently held deep inside Hell. The Bravo team survivor is contacted by Dr.

One survivor barely escapes from his team's carnage.

The last surviving Marine team, Bravo Team, makes their way through the Enpro Facility before a horde of demons ambushed them. More than six hours has passed after the invasion has started.

Doom 3 lost mission