That's what started it. I don't think even Luke Smith knows how the story will play out for the rest of this 10 year, 5 game cycle. How was Martin supposed to know either. This is me guessing again, but he could have made a emotion driven composition. With themes of failure, hope, restoration and beauty to name a few. One thing I do know is that their first major closed press conference, they sat everyone down and told them to imagine the world you would be in with this music playing. Only Activision doesn't see this as good marketing. They, and other developers, see tying pop culture into the game sells more. This is where Martin would see what he thought as his work being destroyed. He worked tirelessly on it. Of course he's going to be mad. The Bungie shutting his protests down is questionable, but all of us would be angry to a varying degree.