That mission is extremely easy. Even to do by yourself. I have a recording of my and my friend doing it. Was thinking of making a vid.
Take the plane, DO NOT JUMP A DUMBASS CAR INTO THE BASE, HUUUUUUUUUUUUUUGE WASTE OF TIME.
Land at the far end of the runway where the 3rd plane is. You blow up the 3rd plane. When you do that truck comes at you with 6 gusy in it. I snipe the guys out of the back, then it rolls up and driver and passnger get out and i kill them(without blowing the tires).
Then i take that truck and drive it to the other planes. Slow down, but dont stop, and drive by the other planes and hit them with sticky bombs. Then drive the truck towards the hanger. Another truck shows up as you go, sticky that one too so those guys dont run into the hangar on you.
Pull into the hanger and park in the far right back corner. Get out and kill those 5 guys in the hangar then hop in the chopper and fly away.
Takes about 6 minutes. I usually have a friend on but i can easily do it by myself.
Dont waste time trying to shoot dudes. Just get in the chopper and haul ass.
Dont listen to these tards saying its faster to drive. Ive argued with retards doing this and i usually am leaving with the chopper before they even get tot he base.
DO NOT DRIVE. THIS IS SOOOOOOOOOOOOOOO STUPID AND TAKES SOOO MUCH MORE TIME.