Continuity mistake: The American soldiers lift out the bodies of the two German tankers and immediately start off in the German tank. They did not have time to hide/dispose of the bodies, yet when other German units show up shortly after, the bodies are missing.
Other mistake: When the German soldiers are on the radio alerting other German units of Americans in a captured German tank, they are using the English word "tank"- the Germans should be using the word "panzer", instead.
Revealing mistake: The grenade Saunders tosses onto the German tank does not land where the pyrotechnics explode.
Other mistake: When Saunders' tank and the other tank are sparring against each other, closeup shots of the tanks' rear drive sprockets show them moving in reverse, but overhead shots of the vehicles show the tanks moving forward.