how to use a cheat
  • the 2 passwords that you put in for the ultimate password, people have said it unlocks all the missions.
  • Cheat mode
    Enter "ENTREZVOUS" as a code. If you entered the code correctly, the screen will flash green. Return to the code entry screen and enter "PORTECLEFS" as a code. All missions, multi-player characters, and secrets in the game will be unlocked.

    This should help out.
  • to access these levels you have to go to the "war records" mission log, where you can select any single player mission