BFG Edition is an updated re-release of the 2004's Doom 3, a part of Doom series. ###Changes from Doom 3 BFG Edition features improved graphics and sound, two expansion packs, and certain updates that alter the gameplay. It introduced checkpoints that automatically save the player’s progress. There are slight changes in the controls, as this version doesn’t allow the use of hotkeys. This edition also includes a copy of the original Doom in its Ultimate version. ###Plot The plot is identical t...