Hell On Earth: The Invasion Of Karr Mod for Doom II Tutorials

You are Corporal Doran, a soldier of the UAC Marines. You have heard of the one marine who took back Mars. You sit and wait on Earth, and then, something happens. The radio blares out, by the sound of gunshots and screams. "Great, Outpost Beta has been taken over." You head off to the armory, and open the gun locker and take out your prized possession, your 9mm pistol. You overhear some marines chatting: "Dude, did you hear that some of these monsters throw fireballs and eat you alive? There like hellspawn." "Yeah, i hate these things." You walk out to your dropship, and you load up. You arrive at Outpost Beta, and look everyone. Dead bodies to the left, the right, and straight ahead. You see an alive person, and you know this guy. "Jack! I thought you were..." They had to bring back fallen warriors. The undead shoots at you, but one things for sure, You have to get out of here alive. Hell On Earth: The Invasion of Karr takes place when Hell invades...