I was just talking with a friend about the release of L.A. Noire and open world games. Then an idea popped into my head. How would YOU react to an open world Halo game? I'm not talking about an MMO. Think of a GTA or Saints Row style (obviously war/halo universe related, not gang related) game, except Halo. It could be based around a Marine who tries to progress to an ODST, or even a new Spartan and rather than having a linear story line with limited explorable areas, it would be open and "boundless" with a main story, but also side stories.
So what would YOU think if something like that were to be made?