Note that you don't trigger the waves to start as you do in the solo/duo - they start up on their own, so you don't have all that prep time. Also the static barricades aren't built for you, you have to actually construct them. They're not broken down and boxed up, so you don't have placement options. You have to build them where they are. I don't recall if you can deconstruct then move them after they've been built the first time, however.
Originally Posted by Digaloo
as a sig before it was popular