Hi. I had the same impression at first. I played around with Syria, Caucasus and Afghanistan to understand what is going on and I think I found out why it appears that the new Fog and Dust storm do not work.
Simply put the new System takes 0ft at sea as its base and since afghanistan is a rather elevated map, even at its lowest points in the southwest, the Fog/dust is "too far below the terrain" to appear above the surface. You would have to use manual Fog settings to make it work properly. Since duststorm has no thickness option, its pretty much useless on the map.
Also Afghanistan seems to not have received the new lighting maps that make cities glow in Fog and illuminate clouds above them.
