The ideal 'Scenario' (excuse the pun) is to be able to send the VOX audio down one raceway on the client, and the game sounds down another raceway.
In my perfect world, the headset is completely VOX and only VOX (single item)...and my external effects run on the speakers in full surround...and anyone listening to the speakers cannot hear any VOX coms...and my ambient effects sounds are subdued by the circum-aurel headset, though still audible on the speakers
Hmmm
Christmas is coming isn't it?