Enter This While You Are On The Main Menu And You Will Have All Missions In 1st and 2nd Campaign
When you are in the main menu type: "Show me the money"
Go to the duty-free shop and buy the violin case. Give it to the East Indian guy on the bottom floor; there a fire extinguisher beside him. After giving him the violin case, the plant that's in front of the extinguisher will be moved, revealing a secret passage.
Go through the secret door and ask the army guy to sabatoge your opponent's planes or other equipment!