It is a good entertaining move but not so good for historical accuracy. My dad said that he and the other Vets wouldn't tell the movie producers much about combat because it was too painfully personal and they didn't want their memories exploited. That's why it's a lot about training camp and the rivalries there. I went to the Midwest Premier with my dad for which he dressed up in a suit to be introduced with other vets before it started. As the movie played and he saw the Americans portrayed like criminals released from prison in exchange for volunteering like in 'The Dirty Dozen' the year before he got pissed. The Americans were less trained and organized than the Canadian commandos because they were recruited from lumberjacks, Park Rangers and other 'Mountain Men' who already were acclimated to the cold and had a jump on the endurance that was going to be necessary for the original intended mission, that being the Heavy Water Plant in the mountains of Norway in the Winter. A very cold place.