Declined
More developed text chat system
I personally have no microphone but I type plenty fast. A great idea would be a 'text channel' system, with team chat and global chat. An example of this would be source games (2 binds for team chat or global chat) or Arma 3 (several different chat channels). I'm not sure if this has been suggested before, but it would benefit me greatly when I'm playing a serious game.