Start up, wait at about 200m height behind the end of the runway. You will see the MI-28 taxiing. Follow the helicopter (Yes, that sucker flies like a drunk). When you come back to the airfield, land at your starting point, set your radio to intercom, call the ground crew for refueling, get back into the air. Wait again behind the end of the runway and monitor the runway for the next helicopter.
It sucks, yes.