In paintball, Freight Training is an illegal move.  Freight Training is an attempt by a tagged player to affect the outcome of a game by lingering in the game.  After being hit, the player is supposed to put their barrel plug into the end of their paintball gun and immediately exit to the nearest dead box that will not cause any interference in the game.

Paintball Gun Upgrades

After you've been playing with the same old paintball gun for a while, you soon get a craving for something fresh. You've also probably seen Joe Blow paintballer down at the field with a totally decked-out paintball gun and he's absolutely crushing his opponents. When you get the craving for something faster, it's time to think about an upgrade to your paintball marker.

My Balls Won't Fly Straight

You've got an awesome marker, but you notice your paintballs tend to lob or vear to the right or left.  Don't worry, it's probably not your new paintball gun.  First, make sure your barrel is clean - use a squeegee; they're cheap and easy to use.  If this doesn't work, try using a better grade of paintball.