Arena CSR should work on KD and Objectives for ranking up and not just Victories and Losses cause that makes it only teams that are pro and and have a full team of mics the only ones that will be ranking up, other than that it is pretty much impossible to rank up to the next level by yourself because you are continuously ranking up and getting deranked immediately as soon as you lose. Please 343i look in to this, other than that arena is fun and competitive to play.