Very original
The most fun I've had on L4D2 in a long time
Cons:
None
Conclusion:
Ok, so when you first play it's a little unclear what to do/how to use researched items. Once you realise this then the fun begins. Excellent game mode, particularly when playing with a team. It needs strategy methods completely alien to L4D but are a breath of fresh air.
Pros:
Cons:
Conclusion: