The problem with Earth-based campaigns is that they end up being incredibly generic sci-fi in aesthetic, and the stories simply lack scope. I'm not going to comment on gameplay because I couldn't care less how they play in terms of irritants(EVERYONE seems to blow jackal snipers out of proportion in retrospect).

Characters in ODST are fine, it's just that the environments are boring on the level of Grasswatchers Anonymous.

(also I'm probably the only one, but if H3 had been a full-on Arbiter campaign, I would have bought a 360 for it)