How about a map where one side or the other has such a clear advantage that they are forced to have less players. like say the germans were defending some bunker of some sort with 10 men while the russians are trying to take it with 20. Not sure how or if its possible to force teams to be unbalanced like that. but it would be a nice change of pace. Would add some realism to the game since many times bunkers and other well defended areas were often outnumbered horribly during fights and were still able to win because of the defensive position they had. Even if the numbers were crazy unbalanced like 25-5 as long as the map was set up in a way that the 5 still had a fair chance to win.