Factual error: As Stevens charges the German machine gun nest, he fires more bullets than his M-1 rifle could hold (the rifle could hold only eight rounds per clip).
Continuity mistake: As Sgt. Saunders and Pvt. Stevens are about to enter the HQ, in the close up shots are several soldiers walking out of the HQ towards them. In the long shot of Saunders and Stevens the soldiers have disappeared.