Here is a suggestion. A LOT of people clamoring for prox chat (like myself), while because of bandwidth, server resources, and major code updates might not be practical. Why not add a "chat wheel" function, like Battlefield 4, Hearthstone or some MMO's for common commands/requests/comments. A simple "help me fight..." or "Need fire support", "Follow me" ,or "Nice Job!" would go along way to making communication with randoms easier and more in tune with the "shared" world experience. This has a small resource (server side) footprint, can't really be used for griefing or trolling and would help smooth out the communication and would be fairly easy to patch in. C'mon random Bungie employee please see this and pass it along.