These are ones I had on my server. Very useful.
Team Radar: (only shows teammates) It even allows you to replace the radar image with your own and choose the position where it will be on the screen.
https://unrealarchive.org/mutators/u..._3aeeeb6d.html
Radar 2004: (shows everything. all players, vehicles, special objectives and even projectiles.
https://unrealarchive.org/mutators/u..._774dd405.html