I have selected the "Always open Lobby" and do a .sr to find out where my squad is. Handy for finding your squad but not others.
It'd be nice to be able to see who is tuned to a specific VOX channel from the lobby between the arenas. We sit in a "public channel" with three or four other small squads, so using .sr doesn't really tell you if part of the group is online or not.
