You know that stuff better than me, i am sure. The nose comes down pretty hard and additionally, the aircraft is pushed into the turn because the lift of the wings forces the plane not upwards but into the direction you are banking. I just fired up DCS and rechecked the F-15c’s behaviour in a 60° fighter turn. The biggest problem with the current FM in my eyes, is the miniscule nose drop when banking. If this was enhanced, i would consider fixed wing flight reasonbly well implemented for what the arma sandbox represents. 'The biggest issue is one specific point of the flight model.
So it is the first thing mentioned…which I guess is good… And the good news is the very first post in the BIS DLC forums about the Jets DLC asking for feedback addresses the flight model issue.