Eastern front is main focus of IL2-and thus logically pretty complete
Apart from the fact that a german bomber player is forced to fly 1940/41 He-111 and Ju-88 versions even in 1943... Or missing important Bf-110 variants (C4, F2)
From pacific, I think the most important would be the Helldiver, a flyable B-25C, and a D3A2