I'm at the 7th mission / 11 of OP Dragon Rising for now. All of the sudden, checkpoints screw up, dialogue, bugs, the whole damn nest. It's like the end of the world. I died too many fking times and I still haven't finished the mission, but I'm making progress and I unlocked another 6 additional missions for free-playing after the campaign's finished. At least.
*sigh*
I also started Hitman: Blood Money. So far it's ok.