Was this person a troll on World at War?

He stayed in the corner until we all died. Then when all the zombies came for him he whipped out a MG42 and killed all but one. He made it into a crawler. Then he boarded ALL the windows. Then finally he traded his fully loaded MG42 for a sniper rifle and went to a blank wall and made a smiley face with bullet holes. Then laid down in front of the crawler to let it kill him.