If you have a group of helicopters and let AI to go to the point of unloading using detaching helicopters from the group via grpnull and copying waypoints from invisible helicopters, they either unload troops at the beginning, ascend to altitude and do not fly anywhere, or fly to the release point to be detached and except the command helicopter they stay over there and unload troops some kilometers away. The commands were working properly last summer in June. {F23894}