Oh, gosh! It sounds like SH4 coders messed too much with radars. As far as I correctly understood your explanations in this game:
- SD radar is in fact directional radar, exactly as SV model
- no air targets are displayed on surface radar scopes but in reality SV radar could act like this
- human player has to distinguish himself between surface and aerial contacts and that may be hard to do in an intensive battle environment, as I suppose
In sum, radars are definitely not modeled decently in SH4 even after five patches released!
