Maybe you could add purchasable perks for paintball (of course purchasable with points). My reason for this is that it will make the game more exciting, you could release new guns into the shop for example a sniper gun or a machine gun. Don't make them too cheap however, but do make them so that you can have them for life otherwise it is a little pointless. You could also add grenades?
~TwiisTted
~TwiisTted