USAF combat controllers (CCT)s, wearing open circuit SCUBA gear.
CCTs train with both open circuit, such as the Twin 80 gear shown here, and closed-circuit systems such as the Draeger LAR V rebreather.
USAF CCTs deploy alongside other Special Operations units sich as Navy SEALs and are proficient in a range of amphibious infiltration techniques.
The CCT training pipeline includes instruction at the U.
S.
Air Force Combat Divers School, Panama City, Fla.