It’s official: changes are being made to training at Marine Corps Recruit Depots Parris Island and San Diego. According to a Marine Corps news release Thursday, recruits arriving in November will be the first to experience the changes, which include the addition of a fourth phase and moving up the Crucible in the training cycle. The Crucible, the grueling 54-hour teamwork and combat skills exercise that is a recruit’s final test before earning the title of Marine, will still occur near the end of the 13-week training cycle, but a week earlier than it does now.The “fourth phase will utilize...