They could have shown off a better or more sandboxy SP level from Halo 5. I think the issue with having the other guys there, is that there is basically less for you to kill, and less figure it out yourself exploration, as they pretty much went the correct way ahead of you each time. Not the best showcase, but only a snippet of the game. Outside of the jaggies, the graphics looked pretty nice. I thought the weapons looked and sounded satisfying and powerful.