This is intended as constructive feedback.
I understand the concept of the rating/division, has something changed today as so far I haven't seen how one tells what division one is in (ie. is this visible in game or something we have to look up here on this site)?
Re Quitting - Again, we need an option to leave before match starts without FORCING us into the match to do so. Example, last night after many Arena games, a recently met player invited us to Grab bag. I couldn't exit gracefully from the game lobby as it was in voting lock-down mode.
Re Proximity Voice - I don't mind this as one can use it as a tool to feed mis-information if one knows the other team are listening. It is unfair however if the two or more players on the other team are in Group Chat, they get to hear our Proximity Voice while we don't get the same benefit. Solution: Make the game mode lock out Group Chat (I know this can be done as other MP game does it).