When the commander tell the other German to open the hatch and go out to confront Saunders, the German doesn't take his pistol out of his uniform jacket until he is far enough out of the tank for Saunders to shoot him.
When Shay asks Saunders if he knows the password, Saunders say, "Do you?" Shay answers with the password and Saunders chuckles and tells Shay he's right. Then he climbs into the truck. Saunders should have chewed him out for revealing the password.
During the introduction, stock footage is shown that is supposed to represent a tank battle between American and German forces in 1944. Some of the stock footage depicts German, French, and British tanks from 1939-1940.