I decided to play halo today and right as the game loaded, I got the 2 achievements size is everything and now they fly. This shouldn’t be possible as i hadn’t got them before and i just started the game. Does anyone know what happened?
I know you guys may think it’s the update but allow me to share further. It may be true that most of the achievements are glitched but in reality I earned almost all of the map pack achievements BEFORE this update was installed. These were the only map pack achievements I was missing and I’m very sure I shouldn’t have earned them.
> I know you guys may think it’s the update but allow me to share further. It may be true that most of the achievements are glitched but in reality I earned almost all of the map pack achievements BEFORE this update was installed. These were the only map pack achievements I was missing and I’m very sure I shouldn’t have earned them.
It is possible that you haven’t earned the achievements, but the recent fix seems to unlock all achievements for DLC that you own. It does make it somewhat easy, but it’s a lot better than not getting achievements at all. 
just co sider yourself lucky