There are some reasons why jets for CFS3 are mostly late WW2 or Korean War era - CFS3 doesn't support homing missiles, radar or supersonic flight (not properly, the flight model is targeted at subsonic flight). I'm not sure reheat is properly modelled either - that's afterburners, single or multistage.
Then there's the vectoring thrust available on the real F-22 (the jet pipes can swivel): I don't even know if that can be flight modelled in FSX, although someone will probably know. Thrust vectoring in CFS3? Don't even ask...