We actually tried this. Bought some guns from the flea market for like 30 bucks. All were single shot pump guns. we did have one automatic though which was the best, but it did cost around $80. We played in the woods behind my house. We thought it was going to be a lot better then it was. Hard to know if you hit someone or not with the single shots b/c everyone denies it so it kinda sucked, but im sure if we had automatics and played in a more open area or like deserted building it woulda been better. Wear glasses its not fun taking one in the eye from 10 feet away trust me i know. But this is basically a cheap ass version of paintball with a fraction of the fun factor.:shoot: