add a section next the icon where its shows if this game is looking for new players that basically shows if the host requires you to have mic in order to play with them
an icon of a greyed out speaker with an X on it for not needed
an icon of a blue speaker for recommended you have a mic
an icon of a red speaker with an ! in the corner for absolutely required

this is just an additional suggestion feel free to ignore it
and you'd have to select an option or you'd be unable to create the game server