It's practically a given that the protagonists in the Halo TV series will be of the human variety - who do you think they should be? I would prefer that they not focus on the chief - you've already spent 4 games with him as the (mostly) silent protagonist. Focusing on something else - (preferably during the main human-covenant war rather than the 343 cul-de-sac) would allow Spielberg much more creative freedom and a take on the war beyond the visor of an invincible super-soldier. A squad-based series would probably be ideal - just take a look at Bungie's Landfall to see the sort of things that could happen. Funded by MS, with a vastly bigger budget, and with Spielberg at the helm, they'll have to try very hard to screw this one up.