Been testing out the new sling loading for arma 3 works like a gem can't wait for the final version to be released.
At the moment I haven't been able to lift containers only quads and off road's seem to be working for me at the moment what would really be good is if we could be able to open the containers and load them with equipment such as static launchers ammo boxes and on the larger scale quad bikes and small cars and to have the ability to close them in. so when the sling loading is adjusted to work with the containers they will serve a good purpose as one would be able to fill a container with equipment sling load onto a helicopter and drop them off.