Jeez, I agree with Lazer on this one for the most part. I would to see dot dar again instead of vector and type ac. I would think to simplify things you could add some complexity to the RADAR mapping. For instance do a shadow map for coverage, and in the instance of a chain home style radar you only had an a-scope (range only), so there would not be any bearing over a close to 100 degree arc. I assume they used some sort of triangulation to decide the bearing. So in the light of what could become problematic in explanation for the laymen, dot dar with an enhanced RADAR shadow mapping based on a 3D resolution cell mapping (lookup table) for the lower altitudes to see if you could be detected would be fun.
Dieter