Hmmm...that doesn't sound like an inherently problematic design. I mean it does sound like there's some issues that need sorting out with regards to the various responsibilities of the hunters as it does seem like in a normal game there could be a bit too much down time for some of the classes. I'd be interested in seeing the overall W/L splits for the different monsters. That said the overall impression that this game gives is that it's similar to but weaker than 'Left 4 Dead'.