The reddit posts talks about the Bungie employees leaving. Regardless of the official "reasons" it makes sense the lead story writer would guit when this idea was green-lit. I'm not a Halo fanboy. I quit gaming about the time Halo got big and got back in a couple of years ago. But my guy says Bungie made an incredibly rich, engaging game and Activision decided to chop it up into 3-4 money making opportunities.