Have all skulls in Halo 3 but no Hayabusa helmet?

[Brigzzz]

I have every one and it wont show up wen igo to appearance and try to change it...
Got em all on normal and all following the rules...
Do i have to complete the campaign on normal or harder to recieve it?

 

[Alec M]

Have you checked the Skull menu on the campaign lobby? This will tell you if you have all the skulls just press X on the campaign lobby. Have you got all the other Hayabusa armor?