I think Im happy now, because of my 19" LCD 1024X768 is not a good res, even though doing so gains about 20fps for me, much better at 1280x1024 with some stuff turned way down.
Settings:
In the control panel I have AF 2x and AA 2xQ with Texture filtering at performance and Vsynch forced off.
I think graphics are perfectly decent, I fully expect to be able to raise them once some patches have optimised the game.
Only times the fps go below 20 is night missions, using NVG and binos or scope at same time.