Boosting was pretty much nonexistent in Arena and was displayed in the service record on a season by season basis. Why can’t we have an extra tab added for CSR like Arena had in Reach?
That’s because nobody actually cared about Arena. The ranks were confusing, so not many people knew what they meant. The problem is it would probably end up like Halo 3 where tons of people were boosting, de-ranking, and selling 50’s.