Fight on line of economic wear, if you shoot many missiles or very expensive missiles, you will exhaust rapidly the bag of money, if you use economic planes the loss in case of death will be minor.
Finally there will win the one who could support in flight his planes with the economic box that has been allowed him.
This is the more ralistic case, if you have money you cant ger more misiles and planes, if you don`t money, don`t plane, don`t have whife, you lost the game.
sorry for my little english.