I've heard some people complain about the replayability which is just absurd. You got co-op which is definitely a big thing and then versus which is more or less the same thing but it has a different experience. The dynamic with this is that the normal zombies aren't as present compared to the bosses, which you play as. The Versus mode is a focus on the big baddies.
Now going through, weren't the bosses a problem? I mean who hasn't died from a Tank? Imagine fighting more of them! The zombie players won't be able to constantly respawn as the big guy but still the Smokers and Hunters will be more present which is never a good thing as a human. Not to mention the victor is not necessarily determined by who dies or not. It is calculated with a little formula...
[(Average Distance Traveled) + (Health Score)] * (Number of Survivors in Safe Room) * (Map Modifier)
Zombies don't get points, instead you just switch turns as the humans. Isn't that just sweet? If you are on my team, don't drag me down!
If you want to read up on more ot the details, check out
Left4Dead 411 for it.
I'm really excited to try it out, but I won't touch it until I've conquered all the "movies".
Can you gang up and use different tactics? Like have a smoker drag a dude far away into a crowd of zombies, and then swarm the rescuers when they follow to revive? Can you have more than one of each type of boss zombie? Can you pick which one you want?
Sorry if my questions are redundant, but I didn't see any of this covered on that site you linked to.
The difficulty of the campaign isn't a shock either. If the demo levels are any indication of the length of each "movie's" total length, then most of the time will be spent trying to inch your way through the short levels. What makes the game awesome is how even though you're fighting for every single square foot, it's not trial and error gameplay. Nothing short of total teamwork will get you through the higher difficulties.
Also remember, the zombie bosses have a bigger map. As a Hunter and the Smoker (ESPECIALLY) your map is larger containing some areas out of the humans reach to give you more of an advantage since you know how easy they are to kill.
But I think you will be able to have more than one type of zombie since there are only 4 zombie bosses and you can't ALWAYS be a Tank.
Steam:
Mixmastaspig
I played through the demo over 9000 times and it has never been the same.
This is considering the Director chooses for you.
Lame.