No mention is made of the fact that the German Balkans campaign was provoked by Churchill when he occupied Crete and Lemnos in November 1940, one of his needless adventures by which he dragged Greece into a war with Germany they could only lose after they had just driven off the Italians rather successfully.
During the portion where the narrator describes the artillery used during the siege of Sevastopol, while the footage shows German troops loading a shell into the railway gun named Schwerer Gustav, the gun is said to be 400mm. In fact, the artillery piece was 800mm. During that same sequence, a short barreled mortar is also shown briefly. This was one of the 600mm Karl-Gerät series that was used against Soviet defenses in the early portion of Barbarossa, including the siege of Sevastopol.