I have no idea on how to go about this, I need the camera to follow a unit in third person view and to beable to change 180degrees on the press of a hotkey.

F = Front
B = Back

If you have any info that might help me please do.
I've tried messing with the camera triggers that make the camera look at the unit but it's not what I want and doesn't have options to put it at angles/distance.

The only way I have found to make a Third Person camera work the way we all want it to, is to refresh the centering of the camera on the selected unit if and when it moves. If you want multiple directions for the camera, as I have yet to find how to trigger the Yaw on the fly, set up multiple camera objects focused on the same unit but with different initial settings and transition between them. Sorry for the inconvenience, but if I get stuck, I just make workarounds.

Look for "WASD" and "Custom Camera" (or "Third Person") on GalaxyWiki.net

Couldn't you just offset the camera by panning while having it look at the same point?