When you are collecting points, set up a circular defensive position around the checkpoint. You should all be facing outwards. Every player goes in separately and checks off his card. This way if you get attacked, you're not all hanging around the checkpoint. This is an excellent night game scenario.
People are very cautions about moving around.
No bulk loaders, loading tubes or any solid apparatus used to hold or feed paintballs. Two flag stations. Two evenly numbered teams. Two flags, hung in their respective flag stations. The time limit can be changed to accommodate variations in field size, cover, number of players, etc.