Originally Posted by DeZmonD88
Someone mentioned that you can do it out of order:
If you completed the game on Trainee up to level 3 and started using this trick and completed the other levels on Assassin, can one then go complete the first 3 levels later on Assassin to get the achievement?
If not, I'll restart from the beginning, I'm trying to complete this game quickly because the camera is giving me motion sickness.
You need to restart from beggining, as replays levels doesn't save..
I had same problem.