heheh, here's another one:
you are a security guard, it's your first day on the job, in the gun range, you grap your handgun, then shoot the targets, but it misfires and bangs off a screw in the wall and hits the guy next to you, lucky only you and the guy were there, so you decide to throw him in your locker, the next day the "Incident in Black Mesa occurs" so you have to go to Sector A to find out what's going on, you and a couple buddies go there and all split up, Next thing you know, you find their bloody carcases stuffed in vents and all over the floor, You go to the test chambers and find out what horrible things the scientists are working on. you go back down a hallway, and a zombie chases after you, he runs extremely fast and outruns you and bites your arm, you outrun the zombie and get back to your locker in Sector F, the arm then becomes gangrinus, so you have to amputate it yourself with your knife. know you have one arm, and you bandage it up quickly, then something bangs on your locker door (from the inside) you open it and a zombie comes out it tries to bite you, it bites your eye, so you have to amputate your eye. Now with one arm and no eye, you run, down the hallway and notice an Alien to the right, you don't move because you think if you don't move it wont harm you, then you slip, it see's you and fires something through your stomach. Blows a hole right through your stomach, then it drags you down the stairs, and takes it to a room, with other people dead, with little fealings you have, they eat your brain and organs, then you are left to die in a small room with other dead disected people.