Overall the movie shows the horror of German soldiers faced in Eastern Front. I think some technical part of the military command/control was just absurd, ex. You don't talk to the colonel or be his friend, or the platoon simply don't communicate directly to the regiment. And putting a land mine on the tank well that just don't work unless you arm it with the trigger. But overall the movie get the idea right, war is hell, and bad things happen during war.