Three Army trainers - two drill instructors and a company commander - were expected to enter a plea on charges of rape and sexual misconduct before a military judge on December 6. The men are charged with crimes including rape, sodomy, adultery, obstruction of justice, fraternization with recruits and conduct unbecoming an officer. A spokesman for Aberdeen Proving Ground said a trial date for early next year will likely be set. Only Staff Sgt. Delmar Simpson has been jailed while Staff. Sgt. Nathanial Beach and Capt. Derrick Robertson remain free.