When using the toggle zoom out it does not work the way it should. If you look back to Arma 2 if you use the toggle zoom out it stays zoomed out when you click to look down the sights. At this point when you bring up you sights after zooming out it just zooms back in and you have to re-zoom out, this makes no sense and should be changed.

The reason a lot of people play zoomed out is because it looks and feels more realistic than sitting up on the scope.