Hello…
I have unlocked every dlc-achievement
but 3 of them dont count 
If I take a look at the achievements in the achievement list on xbox
it says 1160/1250g unlocked(54/57) (same on xbox.com).
But if I go into the Halo4 achievements by pressing the A-Button
it says 1250/1250g unlocked (57/57).
Anybody out there with the same probleme?
I cant also see any dlc achievements in Halowaypoint.
Please help