+1 to this great idea (I tried to script it, but limitations of DCS stop this from working)
We could have this now if a couple of changes were made to DCS
1. Allow big fire/smoke to to switchable, as in we can start them and al STOP them via scripting
(also needs to work in MP as well)
2. The clear objects in radius, if this were scriptable we could clear areas of forest to simulate
them being burnt as we move smoke/fire across the forest