Just to be clear once for all.... YOU CAN'T DESTROY THE RADAR IN DA. You can bomb it, make it burn, but the "red" dots will be still visible.
Unless the new version (2.14) has changed it, you are wrong. You can take away all dar for a side, just like you can in MA.
Actually I did it myself about 3 months ago to test it. It worked, much to my own surprise.