Halo has always had proximity voice chat up until Halo 4. Since players can play with others online in the missions, this feature would be essential. What if you could hear other players within a certain range as you fought the Darkness together? Give players the option to converse with other players via headset if they are in a close enough proximity. When players find themselves within so much distance of a friendly, they can instantly communicate with that person via voice! Once players are within a close enough proximity, give them the option to create a group chat via headset. Then they can hear each other regardless how far apart they are. An idea I have to make the game more challenging is if the player dies, they can no longer be heard by other players until they re-spawn. Communication with other players can be a key factor to successfully completing missions. Being able to call out for help through your voice and have a nearby player appear is great. Players rushing to the rescue feels very much like the kind of gameplay Destiny is aiming for. This could all be possible with a simple Proximity Chat within worlds of Destiny. Proximity Chat would be a great feature to implement in multiplayer. When an enemy player is within a certain range, you are able to hear them. Since players can converse with the enemy within a certain range, give players the option to mute them when it gets out of hand. I am aware some gaming platforms provide this feature so it may not be necessary to implement it for the platforms that do. In the settings menu, allow players to turn Proximity Voice Chat on or off. Voice proximity is essential since players have to send chat invites constantly and its not always fun for some players when everyone is in a private party chat. By playing and successfully completing missions together, players can become friends with people they randomly encounter in the game. Voice proximity would also be great to implement at the Tower. It would be interesting if a trade system was created for players at the Tower and if implemented, voice proximity would be key. Players can casually converse with one another without having to be in a mission per say. This will make the game far more social. That's the beauty of voice proximity.