Regarding a previous review, Captain Pratt did NOT use a quotation from the year 1984. He was referring to the BOOK "1984", which was written by George Orwell in 1949. The book was supposed to be set in the future.
This episode is very thoughtful. At the end, Hawkeye resigns himself to being "dead" and gets on the bus with corpses to try to get sent home. He even talks to the dead people. "I've been fighting death since I got here. If you can't lick it, join it. Right boys?" Hawkeye is upset about his father thinking he's dead and about not getting any pay or mail. But I think the real reason he becomes so unhinged is because this is just another reminder of his mortality, and Hawkeye is reminded of death enough already.
The last scene of this episode shows Hawkeye feeling better because he managed to call his father and tell him he's still alive. But the episode is still haunting.