MASKED MEN Basic crewman training candidates tread water in a pool while waiting for instructions during their first physical screening test at Naval Amphibious Base, Coronado, Calif., May 11, 2009. The candidates are in their first week of training, which is the first phase of Special Warfare Combatant-craft Crewman training. SHARE: Download: Full Size (0.07 MB) Credit: VIRIN: 367133-K-BJO67-188.jpg Photo Gallery