First destroy the ju-88 base west of your starting place. move to the base and destroy the ju-88's in the air. (TWO) then destroy the hangars. if you're not lucky (like me) two more ju-88 have taken of. destroy them. bonus goals are now completed. then move to the factory and destroy the aa-guns then go to the airbase destroy the hangars and get out as quickly as possible. then when the trains arrive destroy the factory.
Submitted by bio_energizer
If you are getting shot down by fighters, do the following: if you are facing the airport where the enemy planes landed at the beginning of the level turn right 90 degrees.
then if the alarm has been raised you should see a light going strait up. go towards it and go into bombing view. If you have done the top part right, you should be at an air strip. bomb the two hangers and there will be less fighters.
Submitted by Robert McGee