The ability to choose hot keys for a variety of different hand movements, or gestures. For example, in DayZ (and other games), you are able to simply show friendliness in others ways. One way is to have your gun lowered, but i feel that's not much. Being able to simply raise your hand whilst your gun is raised or lowered would be a fantastic feature. Also, a surrender like, like in Arma 2, but improved. Able to move or walk whilst your hands are up, or not having to drop your weapons to use this feature. In a way this is less of a feature request, and more an improvement over the way it was in Arma 2.