Basically what Edwin is describing is Hearts of Iron...a game with a lot of "bells and whistles" but at its' heart, not a very good game. So, if you can combine the best elements of SC and HOI together, SC's turn based AI, and larger hex grid map and HOI's tech trees, production ques and visuals, ect, you might find the Rosetta stone for unlocking the design for a first class WWII sim.