I doubt it's Hayabusa. I don't think that the model designer making a Hayabusa model means anything. If anything, it was a model that wasn't finished in time for Halo 4's release that the designer later finished on his own time.
The codes are probably just rehashed preorder codes.
The mind of the subject will desperately struggle to create memories where none exist... ~~SWINGIN' PAST YA KNEEEEZ~~