Watching some Arma 3 gameplay just now really makes me wish more developers would borrow some of the first-person physics from that game.

I know some will argue it's a case of sim against arcade, but why can't we have a fusion? Why does every arcade-based first-person shooter have to follow suit?

Two small details I would dearly love to have seen in FC5 are a head-bob option, and for the carried weapon to drop out of sight when sprinting. Either, or both, of these would have added a wonderful visceral feel to proceedings.