In Crysis 3 please place the radar on the top left hand corner of the screen. Or even better add features like customizable positions, enable/disable Lock radar rotation etc.
There have been studies at my uni years back that say the human eye pays the least attention to the bottom left/right corners of gaming screens and from my personal experience it is hard to keep an eye on the radar on the bottom left than it is on the top right and be able to view ahead from the remaining focus of my eye.