Yeah for some reason ballers seem to have this weird body armour. It's like they're always jumping around and rubbing an itch or something when you're shooting in their direction however they don't seem to get hit ever.
Note, they're not all like that but it's a generalization. It's probably not going to work unless you play against milsim ballers. Also I don't really appreciate getting paint all over my gear either so they'll either have to use those .68 cal foam paintball things or not do it at all (like this)
However if you're going to do that why not play with airsoft instead?