"Dead Air: The Runway Finale" Climb On Top Of The Airplane:

Get a luggage cart near the left wing of the plane, later place at least three propane tank under it. Explode them and the cart should fly up, jump on the right moment and you should be on the wing. The place is 100% safe against the horde and boomers. However, tanks rock throwing ability, smokers and hunters can reach you. Be noted that the rear of the plane is not detailed thus you will fall under the plane and get stuck there, also this is impossible in versus.