Why do I not have my achievements

Games Other Halo
1

I have all of them unlocked but on here it says I have none. Same with ODST. What is up with that?

2

I am having the same problem.

3

same with mine. its saying i have no stats or anyhting like i have not played the game

4

Same here.

5

I too am having this problem!

6

Same here, must be glitched

7

Me too, but im sure they are working on it. Besides, they have their hands full with Halo 4.