I push the 7.7mm crap gun issue because a pair of 7.7mm's ARE crap guns, regardless of time frame as long as its WWII-era. Spit and Hurricane I are really only usable because they have 8 of them.
In scenarios, yes, German and Italian planes are irrelevent. But we (Tyrannis and I, at least) were just talking about the MA's, and in the MA's, all planes and vehicles are relevent to eachother, regardless of nationality.
So do you want to make this an Events-specific thread (which means you can't use any arguments supporting the Ki-43 that are based in MA use), or do you wish to include the MA's, your choice?