But i am missing some parts of the xwing game , like
when you enter a mission you can select your pilots
and put them in the other craft, and also the hanger
screen when r2 is loaded in your xwing before you
take off.
That's OK, this is normal with pilots selection screen. It has been removed. I suspect it's the same with the R2 cutscene but I'm not sure - it's been a while since I played the game.