U.S. Army Sgt. John J. Ferguson of Indian River, Miss.,

U.S. Army Sgt. John J. Ferguson of Indian River, Miss., representing U.S. Army Material Command, plots grid coordinates on a map during the Urban Warfare Orienteering Course in the U.S. Army Best Warrior Competition on Fort Lee, Va., Oct. 20, 2010. During the orienteering course, warriors receive a map, a compass, a pencil and 4 six-digit grid coordinates they must use to find marked points within a three-mile area within an allotted time. (U.S. Army photo by Spc. Venessa Hernandez)