Apparatus for use in playing a paintball combat game, namely, compressed air and CO2 cylinders specially adapted for and being a necessary component of paintball guns; paintball equipment, namely, valves specially adapted for and being a necessary component of paintball guns; paintball equipment, namely, fill adapters specially adapted for filling cylinders on paintball guns with air or CO2; paintball equipment, namely, tank covers specially adapted for covering paintball compressed air cylin...