What country is this BF 109 from?

[Wurger]

The P-40 of the game isn't the E variant of the fighter but a Curtiss Hawk 81A. So it is not the one of 27 P 40E's delivered to China in early 1943.

 

[João Yazalde]

Yes. The reality is that many things regarding China in this game are not consistent with the story, something that nobody realized at the time.