Until now it was so simple:
Left side (UP for in-game volume up, DOWN for in-game volume down)
Right side (UP for party volume up, DOWN for party volume down)
Left side (UP for in-game audio and party volume UP, DOWN is for game and party down, sometimes only party or only in-game volume down)
Right side as above...both buttons (UP and DONW) for in-game and party.
Omg, what is this?