So, i recently picked up a copy of Halo 3 again, this time it isn't going anywhere. I've played through the campaign on co-op Legendary, retrieving all of the skulls. However half way through we were not connected to xbox live and we didn't know that. After the credits i looked to see if i'd gotten Hyabusa armor, since i collected all skulls. I did, now, when i got to my house it said that i didn't have all of the skulls, i was missing one, wich is the iwhbyd skull. So, i played through it on single player, normal, because i just wanted the skull, but i put the code it, kill all of the flood and i get nothing . I have wasted a lot of time doing this. I've done nearly five playthroughs of the same level on normal, two on heroic, and two and legendary, but i'm still getting nothing, i would really appreciate help because it's getting very irritating .