* RUNS IN DOOM.EXE * You (and your buddies in co-op mode) are the only survivor(s) of a UAC Marine Infantry strike to reclaim the UAC Logistical Bases on Titan, one of the moons of Jupiter. The commanders did not know who or what had taken control of the facilities and all communications had been shut off. You didn't stand a chance against the wave of zombie creatures and evil worse than that. You (and your buds) have been taken to the UAC Prison Facility on Titan. A zombie guard comes to check on you in your cell. You're waiting for him......