Not to call out the OP here, but why are there so many threads about changing/making adjustments to the game for things players have control of?
Radar is low, yes. It was dropped there because the main/only mission that was run in the arenas was the NOE. And it was used to hide and avoid fights aka "wack-a-mole". So now it is more difficult to run those missions. However, it is not impossible, it just takes skill. LEARN TO PLAY THE GAME.
The same goes for the GV spawning in certain directions. The LTARS never seemed to worry about that. They would spawn a bunch in at once and those that didn't get killed on spawn would kill the the spawners. They LEARNED TO PLAY THE GAME.
The same for the radar complaints seeing through hills. This game shouldn't be about avoiding a fight. Just because you suck in <insert vehicle/plane/action here> doesn't mean HTC should change the game, it means you need to LEARN TO PLAY THE GAME.