Nothing was changed as far as damage models, flight models, etc. Only the frontal armor on the turrets of the T34's and the prop pitches were changed on an engine on the Ju88 and B26. Otherwise, there might have been a bug that snuck in with the changes, but I played cat and mouse vs an Il-2 while in a T34/76mm when I was in a town trying to learn the new layout from teh gournd. I took numerous hits and kept on truckin', so I did not notice any differences in Il-2 lethality. Perhaps the Il-2 pilots were just crack shots?