Marines assemble an explosive charge during the Special Operations Training Group’s Method of Entry Course, at the Breacher Pit on Stone Bay, Aug. 5. The two-week course teaches Marines how to overcome obstacles such as doors, fences, and walls through mechanical, thermal, ballistic, and explosive breaching. The Marines in the course are from various units scheduled to attach and deploy with the 24th Marine Expeditionary Unit. - Marines assemble an explosive charge during the Special Operations Training Group’s Method of Entry Course, at the Breacher Pit on Stone Bay, Aug. 5. The two-week course teaches Marines how to overcome obstacles such as doors, fences, and walls through mechanical, thermal, ballistic, and explosive breaching. The Marines in the course are from various units scheduled to attach and deploy with the 24th Marine Expeditionary Unit.