you actually had to depart or approach from the active runway
Used to fly helos into/out of the place quite regularly 69 to 74 and was always given approach and departure direct to/from Flight Facilities. Ditto in a S-76 approx 84.
The only ever hiccup was when ferrying a pair of civil Hueys for delivery to QANTAS to be loaded on a 747 freighter. Thought we would fly in formation to expedite handling but the question arose "do you have (CASA) authority to be in formation?". So we were split up and handled separately. A DC-9 skipper was somewhat unhappy that a pair of helos held up his pushback as they taxied behind him. Not sure whether he was upset at GA using his airport, or was in the usual rush to beat the opposition to the starting line.