I got screwed! I had beaten the game on Heroic and was halfway through a solo Legendary playthrough THEN I played part of the game co-op and lost ALL my solo information.

I need help. It looks like my single player progress has only logged what I played in that co-op session. Not even recognising the complete Heroic playthrough from when the game came out. What happened to my single player information? How can I get it back?

Anyone know?

It may be a glitch, I have heard of people losing their saved data in single player, not entirely sure what the specifics are but that sucks duder.

Try asking 343 on Twitter maybe.

I looked it up on the Xbox.com forum and it seems to be a frequent problem.

With no solution... :(