08-29-2011, 06:25 PM
I didn't even notice I hadn't gotten this achieve until late in chapter 2. I turned off the battle animations right away at the beginning of the game to speed things along. With battle animations turned off, the achievement won't pop. Just make sure to use the default settings for those top two animation/effects options in the settings screen and it should pop the first time you do a 6-person attack.