Was this even play tested? I don't think their QA did a full play through. This game is riddled with crazy bugs and some of them were game breaking. Like getting stuck outside of the map and then dying, only to revive off of the map and fall again. Some bonus quests were completely busted and had my friends and I searching for hours to find out that what we were looking for didn't exist because it was bugged.
All in all, I loved the game when it did work. There were just so many bugs. Especially with co-op.