Marines of Charlie Company, 3rd Assault Amphibian Battalion, perform a maintenance check the air intake filter of a Mine Resistant Ambush Protected vehicle at the Division Licensing compound, Feb. 25. The 13-day course familiarizes Marines with the MRAP, MRAP All-Terrain Vehicle and Mine Roller System and requires them to drive 251 miles of day, night, off-base, off-road, towed load and blackout driving in order to receive their tactical vehicle licenses.