To easily complete this mission, wheelie in a straight line to the right of the plane, getting next to the ramp. When the plane has offloaded the last of its barrels, turn sharply left and go up the ramp. When aboard, it is critical not to use any firearms at all. Even one shot is usually enough to blow you out of the sky. Also, do not plant more than five charges, as they may self-detonate once you pass that amount. Do not detonate the satchel charges until you are standing on the end of the ramp, or you may not get out in time.