If you said that the series was getting progressively worse, I'd agree with you. But there's only been two developers, Bungie and 343i. And there's has been more than 5 games, at least 6 with full multiplayer support (Reach). Of course there's also ODST and Halo Wars (which I loved actually and can't wait for the sequel). [spoiler]And I think you meant to say MIA Master Chief. Spartans never die[/spoiler] Edit: Halo Wars was made by a third developer, forgot. Still I doubt you were including Halo Wars