Talk:Engineering Lab/@comment-5537181-20120922060611/@comment-99.45.40.50-20120923125444

Approximately how long does it take to get that part because I've been trying to get that for two specific turrets of mine, namely the Concussion Turrets and the Incendiary Turrets and no matter how many times I play these simulations, that part always manages to elude my grasp. Do I need to be playing a certain level or something? What needs to be done?