If you share multiple accounts on one console you can sign into the account that you used to purchase TTK on one controller and sign into the account you desire to play with on another. Start the game using the first controller (the one you signed into the account you bought ttk w/) and then when the title screen pops up press A or its PS equivalent on controller 2. On my 360 it lets me play ttk stuff when I do this. Granted this doesnt fix the problem and it only works if you have multiple accounts on just one 360 and 2 controllers but at least it lets some people play and it worked for me. This is why Bungie still needs to be working on he problem.