MARINE CORPS BASE CAMP LEJEUNE, N.C. - Trainees from the staff non-commissioned officer academy (pictured in desert camouflage uniforms) plan their attack as an instructor prepares to move a combat unit on the terrain board April 7. The CAST, part of the modeling and simulation section, II Marine Expeditionary Force, gives Marines the opportunity to practice call for fire and maneuver in a simulated, role-playing environment. (Official U.S. Marine Corps photo by Cpl. Ruben D. Maestre) - MARINE CORPS BASE CAMP LEJEUNE, N.C. - Trainees from the staff non-commissioned officer academy (pictured in desert camouflage uniforms) plan their attack as an instructor prepares to move a combat unit on the terrain board April 7. The CAST, part of the modeling and simulation section, II Marine Expeditionary Force, gives Marines the opportunity to practice call for fire and maneuver in a simulated, role-playing environment. (Official U.S. Marine Corps photo by Cpl. Ruben D. Maestre)