The following components are included in the Doom3: BFG Edition:
Doom³ (base game)
The Doom 3 expansion is known as “Resurrection of Evil.”
a whole new single-player campaign called The Lost Mission includes seven new levels.
The 9-level episode “No Rest for the Living,” initially exclusive to the XBLA version of Doom II, is now included in “The Ultimate Doom” edition.
Additionally, it includes improved graphics and music, as well as support for 3D, achievements, a new checkpoint save system, and an in-game flashlight that can be attached to the armor.