Blitz II is a massive World War II total conversion for C&C Generals: Zero Hour. You can fight as the Allies, Axis or the Soviets in the biggest World War II mod in existence.
The full release of Blitzkrieg II: The Finest Hour. This mod takes you from 1939 to 1945 and features all the major units of the European theatre of World War Two. This file will work with all known versions (fully patched to 1.04) of Zero Hour as of 30/6/09.