In XBL, when you are setting up a game room under options two, there is an option to select "Tutor Mode." This mode enables the Mercs and the Spies to talk to each other. However, when i try to host a game, the option for tutor mode is darkend out. aka unselectable. Is this feature unlockable? Or does something else have to be done? My friends have been able to use tutor mode but i cant. PLEASE HELP!!