I wasn't going to use new game+ but the Spectre weapons made the game much easier so I preferred to keep them. I unlocked 2 Ally achievements on each playthrough. Kaiden and Tali on normal, Ashley and Liara on hardcore and Garrus and Wrex on insanity. Garrus and Wrex make insanity a lot easier. IMO the two weakest character in the game are Tali and Liara so you want to avoid using them on insanity.







