Ive never felt the need to ban a specific gun, if a dart happens to break skin, I tend to just suck it up and keep nerfing. Ive been a paintball player for several years and I have yet to be hit witha dart in nerf that equals or exceeds the pain a paintball can produce. I would suggest you throw on a sweatshirt, mandate eye protection and leave it at that.
Have it, beat the single player campaign and thouroughly enjoyed it . My only gripe about this game is that like many other very good games it was to short. Just as I has sunk my teeth in the credites were rolling.