This prequel DLC, whose events happen prior to “Stalingrad Campaign”, completes the Eastern Front story as told by “Unity of Command”. Take control of the Wehrmacht and its allies in Operation Barbarossa, from the dramatic early victories all the way to ignominious defeat at the gates of Moscow.
Operation Barbarossa, as a historical event, should not need much of an introduction. It was the largest invasion in the history of warfare, part of the largest military confrontation of all time. The nature of the operation, and its actual historical flow, are perfectly suited for the Unity of Command system. We always knew we were going to do it eventually.