1. Start a Dynasty Pick USC
2. Sim each game save after each WIN (if lose simply reload the previous save and sim again)
3. Play the National Championship Game (sim doesn't work) I used 1 minute quarters on easiest difficulty won 14-0. Take off play clock. Then when you get the ball with the lead in the second half. Run one play and let the quarter/game end.
4. Sit back and enjoy the achievement pop :)
Maybe 15mins totaI and I also got the Heisman achievement before the championship game :)