 He entered Basic Underwater Demolition/SEAL (BUD/S) training and graduated from Class 250 on September 2, 2004, as one of the top performers in his class.After BUD/S, he completed advanced SEAL training courses including parachute training at Basic Airborne School, cold weather combat training in Kodiak, Alaska, and six months of SEAL Qualification Training in Coronado, California, graduating in March 2005.The following month, his rating changed from Quartermaster to Master-at-Arms, and he was assigned to Delta Platoon, SEAL Team 3.