Airmen take cover from flying paintballs during a tournament at the base picnic grounds on Joint Base Charleston, S.C., June 4, 2010. The tournament was held as this month's Commander's Fitness Challenge and included eight different teams. (U.S. Air Force Photo/Airman 1st Class Lauren Main)

An Airman in the Commander's Fitness Challenge paintball tournament takes aim and fires across the base picnic grounds June 4, 2010, at Joint Base Charleston, S.C. Squadrons represented at the event included the 628th Security Forces, Logistics Readiness, Comptroller, Force Support and 437th Maintenance Squadrons as well as the 437th Operations Group. (U.S. Air Force photo/Airman 1st Class Lauren Main)

Airmen rush forward at the beginning of the paintball tournament at the base picnic grounds on Joint Base Charleston, S.C., June 4, 2010. The tournament was held as this month's Commander's Fitness Challenge and included eight different teams. (U.S. Air Force Photo/Airman 1st Class Lauren Main)

A competitor reaches for a paintball facemask at the base picnic grounds on Joint Base Charleston, S.C., June 4, 2010, for protection against the high speeds the paintballs reach. (U.S. Air Force Photo/Airman 1st Class Lauren Main)

An Airman surrenders after taking a direct hit during the Commander's Fitness Challenge paintball tournament at the base picnic grounds June 4, 2010, at Joint Base Charleston, S.C. The tournament was organized by the Outdoor Recreation Center. (U.S. Air Force photo/Airman 1st Class Lauren Main)