Halo: Reach

[Good_Apollo]

Bungie wrote the cannon so they can do what ever they like.
Look at starwars for instance, the original jaba the hut was human then in remakes turned into a alien.

Yeah but that Jabba never made it onto the screen, hardly canon.

oh sorry i didn't realise it must be on screen to be classed as cannon.

It was never in any movie, it was a deleted scene...so yeah.

And since every iteration of Jabba that has ever been seen or talked about in any form has always been what we know him as now, I would hardly consider the fact that he was human for a scene be canon that was never used again until after all three films were completed and the slug Jabba had already been shown as such.

/End.