What do you guys think about this notion? Not every team has access to all aircraft. Not for ground units
Bishop = german-japan
Knight = british-russian
Rook= american -russian
or some variant
all countries get goons etc
this would mix it up a little and be a little more like wwII. The fun part would be for the most part you would not be going up against an aircraft you fly, but a historical opponent.
food for thought!!