they decide to investigate and open nothing less than a portal to hell souls from beyond the grave take possession of human bodies, first killed and later reanimated, with the sole purpose of … annihilating us. for … a routine mission? Who believes it anymore?! Perhaps when you come across an indigenous artifact left on display, you should turn your heels in a hurry but not the high-ranking scientists of the U.A.C.

Mars year 2145, we have been transferred to a U.A.C. This is a spin-off, not a direct follow-up to Doom 2.