I just want to be able to find
relative world location between the
actors based on the angle
If you mean that you want a location that lies on the vector from A to B, then you can get that vector (location of B - location of A) and then just multiply it with a number between 0 and 1 and add the location of A to it. So multiplying with 0 would just give the location of A, multiplying with 1 the location of B and e. g. multiplying with 0.5 the location in the middle between A and B.