go to a school board meeting and suggest it.
You should start by gathering a group of people that would support said idea, and then have it discussed by the student council.
Have the students informed post out signs and have one of those sign up sheets for those students who are willing to support you and would want a paintball team
Get a petition and find some sponsors. Paintball is extremely expensive in comparison to soccer or baseball. If you get some sponsors then the school might be more considerate to your request. Schools, much like businesses revolve around the almighty dollar. The petition would show the school board of directors that many people support this activity. We all must face reality, in the fact that many people are offended by “guns” and “war games.” If the amount of names supporting this endeavor are monumental in comparison to the nay-sayers, then that will give you an edge. After all the school shootings that have occurred lately, there is a lot of fear associated with any sport associated with guns.
Basically, you want to start by finding other people at your school who play or want to play. Next step, invite them to play. It is far easier to get a high school club started when you can demonstrate existing interest. Once you have interest, or even if not, simply go to your school’s office and ask them what you need to do to start a new club. Every school is different, but the process should be fairly well defined, and all you’ll have to do is follow it.
Whatever you do, do *NOT* start by going to a school board meeting! The school board is the final authority, and should be your last resort, not your first step.