At the war web screen, select a map, any scenario and arm structure. Wait for the game to load, then type "40hourweeks" and press [Enter] at the force deployment map. Exit to the main menu, and enter the options screen. Click on "Detail". A "Cheat Active" button marked with a red X will appear. Click on that button to enable cheat mode. If you entered the code correctly, the red X will turn into a green check mark.