I played Dark Carnival for a few hours on Expert yesterday. Went through the entire Finale without losing a single HP. I was the first to jump into the helicopter at the end, and the next thing I know I'm on the helicopter floor incapped. I'm not sure if it was a glitch or if somebody shot me, but as soon as the next player jumped in, the game was over (because our other two teammates were dead) and I didn't get credit for completing it. Brutal.