View Full Version : core instability cheevo didnt unlock

07-05-2012, 04:56 PM
was doin it in co-op when player 1 droped out so player 2 finished it, achievment didnt pop. played again in free mode with player 1 still no pop ? am i bunched ??? do u have to start again

07-05-2012, 05:00 PM
You have to play it in Story Mode for the achievement to unlock. It didn't unlock the first time because Player 1 is the only person who can unlock the achievement.