There was on Bungie documentary I watched where they talked about a scene from Halo 2. The original scene was a full CG fight between Chief and several Brutes as you save Miranda Keyes. Bungie in the end decided to let the player fight the fight instead of the camura.
This is an important lesson when looking at Halo 5. Right out the gate, Halo 5 starts with an insane CG fight scene down the side of a snowy mountain reminiscent of the 80's Strider game. The Strider stage was so good that they remade in it in every game since. But the reason the snow stage was more memorable in Strider was because "we played it." There were so many moments in the Halo 5 game that should have been given to the player. I wanted to fight down the mountain, I wanted to save Halsy, I wanted to shot the glass in zero-G.
That simple decision to let the players drive the fight scenes while you 343 shotgun the drama, has been the staple of the Halo games. If you left it to the player, you would find we would love all the crazy ideas and at the same time extending the poor 4 hour campaign to maybe the 8 hours it should have been.
I know it maybe to late for you to fix this, but find it in your heart to reconsider giving us the wheel when it comes to fight scenes.
PS: Can you make a side game about Johnson?