I just loaded up the game for a quick test in single player and found out...
You still cant change loadouts or convergence or fuel levels (Luthier said this was fixed)
The AI was still rolling and diving like a F-16
followed a whole sqd of spits and opened fire to find they didnt react at all to my fire....so shot them all down.
after coming into land my wingman decided to crash next to me on the runway.
this was just a 10 min quick test...