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.
A small Single Player map. Has some beginner errors in it, but hopefully you still find it enjoyable.
What? a small map? This map is ******* awesome! I really enjoyed this map I finished it I find it a good challenging map.
How do I play this map?
Edit:Nevermind, found out how, the map looks great!