...e. New old Rosecrans's plan was to send Crittenden's corps down to attack Chattanooga in front, (that is, from the north side of the Tennessee river.) while he, with Thomas and McCook, should cross Lookout Mountain , and come in the rear of the town, cutting off Bragg from all reenforcements, and making him either come out on the open field, and risk all on the fate of a single battle, when he had the choice of ...