When they did Halo 5 at launch they did a few of the missions and you also had the post mortem video with Frank O Conner. Unless I missed something I don’t think they did any of that this time around. Especially with DLC on the way I’d be keen to get some insight into that.
Have they done anything like that or suggested they will be at some point? I am assuming campaign is a separate team to BTB and multiplayer. My best guess would be when Co-Op drops there would be the best place to do something like that.