First two levels are hard.Finale is very nice and challenging.Can spawn tank anywhere close to you when rescue vehicle arrives.

The design is excellent, I really like the non-linear approach and revisiting the previously seen areas. This may confuse beginners, and especially if they quit playing halfway through the campaign and try to remember which map was it later. The campaign has no shortage of panic events, they are well supplied, and some have HMGs to help you out, but there's one huge difficulty spike. Tank spam. There actually so many Tanks - and sometimes they come in pairs - that you might start treating them like the normal Special Infected, they're that common. In other words, the number of Tanks IS TOO DAM HIGH. Jokes aside, it is both a fun and challenging campaign, and it looks good.

Pros: I love the design that players are going around in a one big location (i.e. the Dam) divided into 4 parts. We can see where we went previously. The map is challenging. Have to retry 2-3 times with 2 friends of mine and with the difficulty "Advanced". The design of reconnecting the wires is interesting. Cons: A bug (?) happens at the level that players have to switch on the button to lower the ground to get into it. For the first time, tanks appear. But we retried, with everything well prepared, no tanks come out. I think tank is necessary here to give some challenge to players. A gameplay video is uploaded.

great map

Pro + Perfect Bot Navigation + Good Interior Design + Nice Architecture Dam Design + Unexpected Plane Crash + New Ending Mode ------------------------------------------------------------------------------------------------------------- Cons - If only 1 survivor jump on the rescues chopper, the campaign will be end ! ------------------------------------------------------------------------------------------------------------- When i first saw this map called Dam It, i think it's the offcial maps by Turtle Rock Studios. But this map is better than the official maps.