The First Blitzkrieg is the start of what will be a series of games called Total War in Europe. Unit scale ranges from divisions to battalions, and includes air groups. Map scale is 10 kilometers per hex and two days per turn. Each game map is part of a greater Master Map, encompassing the whole of Europe and parts of North Africa and Western Asia with a quarter million hexes. The Master Map will be released with the final game in the series. source - http://www.hpssims.com/Pages/products/TWIE/Blitz/blitz.html