When pressing fire whilst sprinting (with gun in lowered position for sprint), it should still be possible to fire

Full auto bursts in this manner can be used to kill/suppress whilst moving

In a bigger way, ARMA has succeeded in using the alt freelook system to allow a good situational awareness and high speed gathering of info on enemy locations in CQB. Whilst running cover to cover you can observe around you. This is good. Next step is to find a way to enable firing whilst running i.e. Soviet Automatic Fire tactics i.e. run-and-gun