Overall I just have to say DAY-um! Love the new sounds, especially the new 20mm (I dig the WHAM WHAM WHAM WHAM WHAM!) Admittedly, yeah, some of the humorous ones I had to replace/disable (sorry). Just a suspension of disbelief thing with me.
I do have one comment about the Ma Deuce sound for the American fighters. It just really doesn't sound like much of anything on my machine, especially when you get all 4-6 firing together (but even when listening to it in WMP).
