At a minimum, go back to dots for everything, then show all planes in flight. Raise the minimum to 200ft to offset seeing everything. GVs, I'm ambivalent about the block dar, maybe tie it to the local radar tower. None of POTW ever had problems finding and eliminating GVs before GVDAR in planes or in tanks. And, after the last two years of lurking to see how terrains are utilized, GVDAR Meh, but, all seeing radar for airplanes created fights. It also created an unwillingness to do much other than a stalled field fight.
It supported the primary need to create activity to concentrate our small numbers. It failed becasue it made the base takers not generate that kind of activity with this as a capture the flag game. Many of the average Joe customers play to be part of that activity. A 200ft minimum with all planes seen as dots at all times above it would allow the base takers to feel like they can succeed. I would go so far as recommend allowing the radar when taken down to make a radar blank spot out of it's circle while the field would still flash. Then the radar porkers would still be in business, in the open space between radar rings you still see everything going on above 200ft. Then a few field's radar taken out to hide the target and once in the ring, up from 200ft to hit the field and town.
Big bomber raids would then use your own radar against you by sending out porkers to create a blinded path that you won't know what is flashing bases along that path to the strats. The greifers would try to blind a whole country which Meh, run an M3 then adapt and hunt them. They would become obvious since the DARBAR would not be effected by any of this and going deep into enemy territory below 200ft alone, they may get one or two fields before being met with a wirble or ack gets them. This would fill the need of another type of lone wolf player whole only likes fight against feilds AI defenses to take out ord and radar. I've seen quite a few of those.
Using the plane icon instead of a dot, I watched many people turn away when someone aimed their nose at them.