To make the most of a field day a paintball player should make sure to bring their protective gear, marker with loader, propellant system, and paintballs. A marker or paintball gun requires a propellant system such as CO2 or Compressed Air. The marker also needs to have a hopper or loader which holds the paintballs in a ready position. Last, but not least, is protective gear. The most basic and minimal protection required to play is a mask or goggles. It is important to use a mask with full face protection that has been designed for paintball use.