A massive demonic invasion has overwhelmed the Union Aerospace Corporation's Mars Research Facility, leaving only chaos and horror in its wake. As one of only a few survivors, you must fight your way to hell and back against a horde of evil monsters.
Original credits: StYl3, Johannes and Kemper. This map was originally released for Doom 3 but I edited few things so it can be played with BFG Edition (RBDoom 3 BFG included in this file)