Invasion of Italy Help!
 

On the sinsle mission "Armored Defense". I have been playing on Simulation all the way up to this mission, but I cannot win. I even tried on arcade and i am still not able to win. What does it take to win this mission as I am very frustrated at this point? There seems to be way too many aircraft to shoot down and I also instruct my wingman to attact. This mission is the most difficult one I have encountered so far.