Dead Center-This is the first campaign in Left 4 Dead 2. According to the game's developers, the campaign takes place in Savannah, Georgia, a city that has not yet been fully destroyed by the Infection. The Survivors' path will lead them through a Hotel, Streets, a Shopping mall and a Atrium and the escape vehicle used will be a muscle car.
The Passing-This DLC is the official second campaign of Left 4 Dead 2. The Passing takes place between Dead Center and Dark Carnival in the suburban town of Rayford, Georgia. One of the main features of this campaign is a meet-up between the sequel's Survivors and the Original Survivors. Note that the original Survivors are not playable. The original Survivors appear in the campaign's first chapter, where they meet up with the new Survivors. They appear once again near the end. It is free for PC, and 560MSP on the Xbox 360. The title likely references the death of Bill, who appears to have given up his life to save the others. *Valve will be releasing DLC for Left 4 Dead, in which the players play through a new campaign, leading up to the event, ending with one player giving up their life to let the other three Survivors escape. Players start in the Riverbank, making their way Underground past the river and to the Port on the other end of the bridge. Both sets of Survivors work together to lower the bridge so that the Sequel Survivors can drive Jimmy Gibbs Jr.'s stock through the area. Similar to the Dead Center finale, Survivors must poor fuel into a generator.
Dark Carnival- This is the second campaign of Left 4 Dead 2 (or third, if you have the Passing DLC) that takes place at Whispering Oaks carnival. It starts off on a Highway with the Survivors heading towards spot lights in the distance, passing through Fairgrounds, a Roller Coaster and a Concert area. Survivors have to set off the fireworks of the Midnight Riders finale to attract a helicopter.
Swamp Fever-This is a campaign spanning four chapters which takes place in a "swampy" location in Left 4 Dead 2. This campaign occurs after evacuating from Savannah, followed by a Crash Site, a Shantytown and a Plantation. The Survivors will reach this swamp and escape from it in a fishing boat familiar to the one in Death Toll.
Hard Rain-This takes place after Swamp Fever and is set in the riverside town of Ducatel, Mississippi. At the start of the campaign, Virgil drops off the Survivors, with a mission to find and bring back gas for his boat. They find a gas station, but it turns out to be empty, forcing them to walk 2 miles to the next gas station "Ducatel Diesel". To get to the gas station, they must travel through old sugar mill of the Ducatel sugar company and the company sugarcane fields. However, this is easier said than done, because Witches are naturally attracted to the smell of sugar. Once they have gasoline, it starts pouring down rain, forcing them to travel back to the dock in knee deep water while carrying the gas canisters on their backs. When they finally reach the docks to signal Virgil, they realize they have forgotten the gun bag, which contained the flare guns necessary to signal the boat. They climb to the roof of a nearby Burger Tank and turn on the sign, using it as the signal instead.
The Parish- This campaign spans five chapters: The Waterfront, Park, Cemetery, Condos, and Table Bridge. It was also featured in the Left 4 Dead 2 demo. Here, the Survivors navigate their way through various environments found throughout Cajun country in hopes of being rescued by the military.
