The grounds the limit.
I hate to muddy the waters but the Royal Navy also provide a service called Terminal Control, in which mandatory instructions are given outside of controlled airspace to ac recovering or departing from a RNAS. Under TC the controller is responsible for terrain separation unless a clear and Unambiguous transfer of responsibility is made to the pilot. If Mil ATC can't even have uniform types of service how can we expect Civ and Mil procedures to tally. No wonder aircrew get confused, hopefully when the F15 CM is over they will have a re-think about the whole thing.