NBWS from thoCAMP PENDLETON, Calif. —. Marine Pvt. Walter J. Chatelain, Jr., son of Walter J. Chatelain, of Route 4, Box 118, Beaumont, and Mrs. FrankMontaivo of 1531 22nd Street, Nederland is scheduled to finish four weeks of individual combat training October 30 at the Marine Corps Base, Camp Pendleton, Calif.The course includes the latest*infantry tactics, first aid, demolitions, field fortifications and advanced schooling on weapons.Trainees learn that all Marines are basically infantrymen, whether they serve as cooks, typists, truck drivers, or with aviation units.