I was wondering if I actually need the DLC to get the achievements, as I have unlocked some Noble 1 and Defiant ones without actually having them, yet anniversary only works in anniversary playlist. What’s the deal?
Noble 1 and the first 3 defiant achievements were glitched and allowed them to be completed on any map. When the anniversary map pack was released, in addition to the anniversary achievements, they also released 3 more defiant achievements. All of these must be completed on a map from the specified dlc.