We have a very nice arena set up about 45 mins drive from my house, its great fun. we go there (not so much anymore) for birthdays and the likes of.
i remember once i went there with a school (Sport and Rec) trip, we had all the experienced guys (hunters etc) and the other team wased composed of D$%heads and the teach, when half time was over the teach hadnt returned to his own side yet and we jsut let rip, ends up his helmet got shoot off, and he got a couple of nasty bleeding bruises on the neck.