Nightmare about paintball? Hmm... I used to have them once in a blue moon. One I remember, that wasn't quite a nightmare, was that I was playing in some tournie, I owned the entire other team by myself, I went to bunker the last guy, and he threw off his mask and began daring me to shoot him
Then some refs ran in, I shot him in the leg, and all as well...
No, I'm actually dead serious about that dream.