Obstacle Angle Marine Corps officer candidates participate in an obstacle course event at Officer Candidates School at Marine Corps Base Quantico, Va., Feb. 1, 2018. Marine Corps photo by Cpl. Brooke Deiters SHARE: Download: Full Size (1.47 MB) Credit: Cpl. Brooke Deiters VIRIN: 180201-M-MV819-0057C.JPG Photo Gallery