Colonel Hart's Death
So Hart shows up back at the camp, having become a cannibal and fully recovered from his injuries. At this point, he seems to be supporting Ives and the mission of converting Boyd. Note the scene when they are all eating stew, Hart is happily lapping up the remains of the dead soldier.
However, the next scene, Hart all of the sudden becomes depressed at what he has become and asks Boyd to put him out of his misery. Did anyone else find this a complete 180 from the previous scene? Why do you think Hart all of the sudden wanted to die rather than go on being dependent on eating human flesh?