I'd advise you to just play with the Mission Editor and figure it out. You've overcome the biggest problem in using any mission editor, in that you already know what you want to do. The rest is just details.
Plop a plane on a runway, set the skill to Player, change the waypoint type from 'turning point' to 'takeoff from ramp', then click the second icon to set your weapons loadout. Plop some bad guy tanks near an identifiable landmark and blast away!