How do you get the hayabusa sword on halo 3?

[lag]

i have xbox live.

 

[D168]

Unlock every achievement in the game

 

[D168]

Unlock every achievement in the game

 

[rgv987]

i have it its called katana sword you get it on your back when u have ever ahivement for halo3 three rgv0987 is my account

 

[chrisp]

yh he's right thats wot u gotta do http://www.achieve360points.com/game/halo3/ this link will give a guide and list the achievements and how to get them. hint the majoraty of them are easier to do in campagn hope i helped