I don't know of a field owner that would turn down your request to help ref rental groups or walk-on groups. If you're lucky you might even get paid. Reffing games at this level also will introduce you to a network of teams and players that might come in handy someday for you. As you do, you're game will probably benefit as well. Play safe and have fun.
Paintball Read all about the sport of paintball.
Tips for beginners Tips for the first time players. How to get sponsors Read some tips on getting sponsors. Some interesting technology facts about paintball. No one else will ever tell you this, but there is a right and wrong way to use cover. Perhaps it works so well.