More camouflage would be nice and if an M-3 or tank is inside a building, you should not be able to see an icon from outside the building!
Some of the town buildings would work great for camouflage if you could drive into them but as it is now there are only two structures that a tank will fit into, the blown out grey house and the old red barn, if the newer big barn had a bigger door,that would help,,, also if you are under a large group of tight trees, your icon should not show up!
If your in a bomber and in doubt, drop an extra egg!
As far as icon range as it is,, I like it, I think it could even go back a bit while running and moving,, maybe back to 1500 or so, as long as it didn't show at all if hiding under adequate cover!
Just my opinion!