Paintball is simple game in explanation, but difficult in mastering. Basically two teams start in flag stations, their objective is to capture the other team's flag and return it to their starting flag station to win.
Paintball is the safest sport in the world, now.
According to insurance and medical statistics, paintball is safer than bowling. The reason for this is that players MUST wear the proper protection and MUST adjust their paintmarkers so that the paintball will not cause severe pain, upon impact. Just slightly less then a branding iron. It feels like someone snapping you with a wet towel. It stings, and may leave a small bruise, but will not permanently injure you, as long as you are wearing the proper eye protection.