Why isnt the Katana showing up? i got 1000/1000 Gamer Score (Halo 3)?

[Patrick]

Yeah i got 1010/1000 gamer score for Halo 3 and i cant get it to show up.

 

[George]

Maybe you're not enough of a douche bag yet.

 

[~ Dan ~]

If you've got 1000 with the extra achievements that weren't available before then you won't get the katana. You need to get all the original achievements, so 1000 without the Mythic or vid-master achieves.