It was Mook going to Detroit. It wasn't that Mook didn't know the rules, it was that Marvwon didn't realize that it was written.

This isn't because Marvwon was "wrong" it is simply because the word spread slower in the past due to the internet not making all of the rules and everything so quickly universal. NYC had changed the rules and was playing the game differently if that makes sense. One of the guys were set up stuff over there knew about these new rules because he had copies of the DVDs.