Drill Directions Marine Corps Sgt. Preston T. Brown instructs a recruit to respond louder while ensuring recruits have all required gear for training on Marine Corps Recruit Depot San Diego, Dec. 18, 2015. Brown is assigned to India Company, 3rd Recruit Training Battalion. Marine Corps photo by Sgt. Tyler Viglione SHARE IMAGE: Download Image: Full Size (0.54 MB) Photo By: Sgt. Tyler Viglione VIRIN: 151218-D-HQ914-007.JPG Photo Gallery