I have attempted this particular vehicle theft mission at least a half dozen times now. I have to raid a STAG outpost that mysteriously popped up inside of one of the city's parks, and steal a Condor VTOL, and fly it to the airport.
The problem is that this vehicle is made from papier-mâché. If it isn't already smoking by the time I fly out of the park, random police and STAG soldiers shooting at it quickly get it to that point. I can eventually get up high enough to be outside the range of small arms fire, but then when I try to land at the airport, enough soldiers have already massed there that they put the final few bullet holes in the plane and I smash into the delivery point in a charred mass of metal and phallic weaponry.
What's the trick to this vehicle theft?