When HW2 had its pre-order early launch, I completed the campaign and got all but 1 skull that first weekend (normal difficulty). However, as I finished missions I noticed I wasn’t receiving any achievements. I do not know why this occurred and it seemed to not be widespread. Even my roommate who got the game same time as me received all his achievements. I was concerned at first but after 2 weeks they seemed to have fixed it as I started to get achievements for multiplayer related stuff. So I went back with my roommate and did the campaign on legendary, received all those campaign completion achievements I was missing. I also went back and got that last skull. However, I only unlocked the achievement for getting my first skull, and not the rest of them. I tried to unlock other skulls but since I already have them the game won’t credit me for getting them. Curious if anyone else has run into this issue, and if they have a fix for it.