Sergeant Paul Nixon, drill instructor, 3rd Recruit Training Battalion, Marine Corps Recruit Depot, Parris Island, S.C., gives a poolee some added incentive to do what he?s told. Approximately 400 future Marines gathered May 7, 2005 at Fort Indian Town Gap, Pa., for Recruiting Station Harrisburg?s Annual Future Marine Challenge. The purpose of the event is to familiarize the future Marines with boot camp and to allow them to learn about teamwork and camaraderie. - Sergeant Paul Nixon, drill instructor, 3rd Recruit Training Battalion, Marine Corps Recruit Depot, Parris Island, S.C., gives a poolee some added incentive to do what he?s told. Approximately 400 future Marines gathered May 7, 2005 at Fort Indian Town Gap, Pa., for Recruiting Station Harrisburg?s Annual Future Marine Challenge. The purpose of the event is to familiarize the future Marines with boot camp and to allow them to learn about teamwork and camaraderie.