Sailors in class 13-010 of the Riverine Combat Skills course, patrol the training grounds during the medical combat scenario of a field training exercise in Camp Lejeune, N.C., Oct. 24. Class 13-010 is the first RCS training group composed of Coastal Riverine Force (CORIVFOR) sailors and the first ever to incorporate women into the course. RCS is a five-week class that teaches CORIVFOR sailors combat skills, weapons fundamentals and equipment, land navigation, urban operations, offensive and defensive patrolling, and communications.