And then twist ending was awesome.
Title: DOOM: Repercussions of Evil
Warnings: Twist endings! Holy crap, you're not gonna believe this one! Oh, and shortness.
"I will shoot at him" said the cyberdemon and he fired the rocket missiles. John plasmaed at him and tried to blew him up. But then the ceiling fell and they were trapped and not able to kill.
"No! I must kill the demons" he shouted
The radio said "No, John. You are the demons"
And then John was a zombie.