Zombicidal

Here’s a look at the names of the campaign maps in Left 4 Dead 2. While we do not know the official names of many of the maps yet, this may give us a hint to what they may be called. Looking below, you may notice that both Dead Center and Swamp Fever are 4-chapter campaigns. You may also notice that Hard Rain seems to have duplicate maps. This is because the campaign requires you to reach a gas station and then backtrack through a different version of the same terrain in order to reach the Mississippi, where a boat awaits.

Thanks to KeRupTion from the official forums for this!

Elunah Left 4 Dead 2 campaign, chapter, maps