Marines engage targets during the Combat Marksmanship Coaches Course at Marine Corps Air Station Miramar, California, June 24. The course trained Marines to become combat marksmanship coaches to further improve Marines’ shooting abilities Marine Corps-wide. - Marines engage targets during the Combat Marksmanship Coaches Course at Marine Corps Air Station Miramar, California, June 24. The course trained Marines to become combat marksmanship coaches to further improve Marines’ shooting abilities Marine Corps-wide.