I can understand why theres the option to not have them mumble required, for teams to use their own coms. But lets ponder for a moment. Your playing compedive tf2. team communication is absoultely necassary for sucess. I would rather have my team not have a mic but in mumble and able to listen to the coms. The problem with non mumble required is ussaly im the only one in there and i cant call or find out details from my team in a timely manner, and it comes down to who has the most people in mumble.
Thanks for taking the time to read my opion and suggestion.