Totally agree Jarek, co-op is a nice change from straight bog standard multiplayer and if done properly can be a really rewarding team experience.
btw, off topic but NOLF2 has very cool co-op play
"The key to immortality is first living a life worth remembering - Bruce Lee"
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B: Pinky, are you pondering what I'm pondering?
P: I think so, Brain, but where are we going to find a duck and a hose at this hour?