After seeing the option to switch Voice Channels via the Ghost's nav mode in Destiny, I felt like the two other unused D-Pad buttons could be put to good use, here are my additional proposed options. Proximity Chat - When in PvE Public spaces or even at the Tower, we could switch to this channel to talk to random players in the area who also have this channel selected. We would also be able to communicate with our Fireteam, or Match-Made team in this mode. Party Chat - We could switch to this channel for our dedicated Console (Playstation or Xbox) Party System, this would be helpful to quickly switch between in case you wanted to talk to someone who wasn't in your party. Not sure if Playstation or Xbox make this available to change within game though. Mute - With new opt-in communication in Destiny, I think we need better ways to mute people from in game. This will make Proximity Chat and Match-Made Chat still usable if it's only the rare person who needs muting. I would like to see a Mute function when clicking in our analogs sticks to Inspect a player, as well as when we select a player from the roster in the menu.