There’s got to be another one. The plot sorta just wrapped up everything in the last 15 minutes like a blockbuster brain-dead movie. No big boss, no flood mastermind fight… no running into the excavated site on Earth, no explanation of why Cortana’s messages in your head were all whacked. Oh well… it was still great fun. Now on to multiplayer for 4 years of replay value. I can only assume the series will live on in another form (maybe the Gravemind trilogy? or a prequel about the Forerunners?).