Oh so if I gather what you're saying correctly, Basically if you choose to use godmode etc during that play session then save the game with godmode enabled, if you reload the game (SESSION) you will be able to get achievements again as long as the console isn't opened? Or even if you save the game with godmode enabled in the new session it WON'T have godmode enabled unless you go back into the console (essentially freezing achievements) which would be the way I'd have programmed it to work anyway if I'd have written the game. I personally won't be cheating on this game anyway (well the first time round anyway) the same as with Fallout 3, only because I think it's pointless playing a game for the 1st time around if the challenge is taken away, where as the 2nd time around playing from start to finish you already know everything/every location so you can just relax with godmode enabled :D