Other mistake: It's established that Emma doesn't understand English as shown by Norman having to mime when talking in the bedroom. However just before this, Wardaddy calls her a nice clean girl and Norm should take her in the bedroom, or he would. Emma then walks towards the bedroom and pulls Norman after her. Wardaddy doesn't point to the door or motion in anyway to give away what he said. So how did Emma know to go to the bedroom? (00:57:45)
Other mistake: The Tiger tank wouldn't have burst from cover after picking off one Sherman. Why would it when it could stay put and pick them off as they approach? Even in 1945 when recruits weren't always well trained, the German Wehrmacht didn't give Tigers to newbies. (01:17:10)
Other mistake: The credits list "Young SS Trouper" instead of "Trooper." (02:03:30)
Other mistake: Just before the final battle, while ammo checks are being done a shot is fired from Norman's machine gun when when the camera is aimed at the road. No sound accompanies the shot and at that stage of the battle they were supposed to be quiet, not taking test shots.
Answer: Although he starts out afraid, awkward and hesitant, Norman gradually becomes battle-hardened throughout the film. But there is one event that probably changes Norman more than anything: When his one-night love interest, Emma, is killed during a German attack. After that, the tank crew realises that Norman has changed, become harder and more focused, and they finally accept him as a team member with the nickname "Machine."
Charles Austin Miller