Confusion: How can you play cooperative (guitar and bass) with the whole track list? I've unlocked nearly everything in my single player game save, but even in the co-op game(where I have played through about half with 2 players, each playing hard) if anyone picks a different difficulty than the ones originally chosen and with which the songs were beaten, it goes back to 0 songs played and you only have the first 4 songs to choose from.
And in multiplayer, there is only Face Off, Pro Face Off, and Battle mode.
What gives? I want to be able to play coop when random people come over and have different abilities and play on different difficulty levels. It's going to be really fucking lame when they have 4 songs to chose from in cooperative mode.