The Objective
In paintball the objective of the game is to eliminate all the players on the other team if you want to win. The one basic rule that you need to know is if you get hit once and it explodes on you you're out. If the paintball hits you and bounces off and it does not explode you are not out.
The Rules
If you are within ten feet of a player on the other team you must yell "mercy!" If you do the other person is out.
During the game you must keep your mask on at all times. If you take it of and you're in the arena you will not play the next game.
No shooting out side of the arena.
No shooting the referee.
Those are some rules. But there are a lot more. Some game modes are team deathmatch , capture the flag, and regeneration round.
Hope you learned some new stuff about paintball.