Well, shucks!
Is this a game you are making or one that you bought?
One I bought.
IL2 1946 is a nice flight sim, one where you can play as the Krauts, the Francofrogs, the Poles, the Nord, Finns, Brits, Americans.. New Zealanders, Aussies, Japan.. all in WWII or vicinity.
(1946 drifts into a ‘what if’ scenario where WWII ended with teh assassination of Hitler and everyone stopping in place.)