After his success in Poland, Hitler gave Rommel his choice of units to command. In 1940, Rommel took command of the 7th Panzer Division. Under his leadership, the 7th became known as the Gespensterdivision, or "Ghost" Division because it moved quickly and the plain fact that nobody seemed to be sure where the unit was at (even the German High Command).
Now you can take control of the 7th as you wage war against the Allies!
Comprehensive summary about units from all game boxes.
Many thanks to user "Pupski" for revisions and corrections.