Great idea, that Hitman thing.
But I don't think it would go with that particular theme. I mean, hitmen usually work alone. But if a similar game was done with an even slightly different theme, it could be wonderful.
edit: I guess you actually meant the concept, not the exact game, but coop.
PS. Pierluigi Collina. If he'd just make the right face expression for once goddammit, he'd look pretty much like 47