I did this mission with the Huey, not yet the Mi-8. You have to take off and fly direction West as the flight plan says. The enemy units are in the ends of each runway, so if you fly West avaoiding the runways, you would be safe.
Tako,
I have a question, I arrive to the point where I have to land on top of the highest building North of the airfield, now which one is that? I am stuck. :D