Scavenge Mode

"Haul ass and get gas!" Scavenge Mode is a new gameplay mode in Left 4 Dead 2. Each game consists of the Survivors attempting to find up to 16 gas cans to fuel up a generator (or car), while the infected try to stop them. The Survivors will have 30 seconds to set up and grab their supplies, while the Infected find locations to spawn. The game will start when the set-up time runs out or if a survivor leaves the designated area around the generator. Once the game starts, the Survivors have 2 minutes to find the gas cans, with an additional 20 seconds added for each can they bring to the generator. When the time runs out or all the survivors are incapacitated, the teams switch sides. Overtime will occur if the time limit runs out, but at least one survivor is holding a gas can. During overtime, the survivors will have a limited amount of time to fuel the generator. If the gas can is drop the teams will switch sides. The new survivors will have to get one more gas can than the previous team to win the round and end it. If both teams collect the same amount of gas cans, the team who did it faster wins the round. The final score is based on which team won more rounds, rather than the total amount collected. So a team can win even if, overall, they collected less gas cans (as long as they win more rounds). The game will end as soon as it is impossible for the loosing team to win. (For example: a game of 3 rounds ends as soon as a team wins 2 rounds.)

Gas cans have a white aura, so survivors can see them anywhere on the map. If they are picked up and dropped they will have an orange aura. Gas cans always spawn in the same location on the map. If they get destroyed, they will eventually respawn back at the location they originated. The only infected that can destroy gas cans with its attack is the spitter. However, the attack only works if the gas can has been previously pick up and dropped. When gas cans are hit with the acid they will flash orange momentary, than explode. While flashing, survivors will have time to pick up the gas cans before they exploded.

Tanks and witches do not spawn in scavenge mode.

There are currently 6 maps to play on in Scavenge Mode. The maps are mostly identical to the areas in chapters they are made from, however, they have been modified to block off certain areas to limit the gameplay area, Like the maps in Survival Mode.



Tactics

 * As the Infected, try to focus your attacks on survivors either carrying or pouring the gas cans. Any type of attack by an Infected will reset the pour timer for the Survivor. If a lone Survivor is pouring a can, jump to them and claw, pounce, pull, or ride them as fast as you can. This will not only delay the pouring, but make them drop the can.
 * Additionally, the Spitter's acid is the only type of attack against the gas cans themselves that the Infected can use. If there is a dropped gas can (indicated by a yellow glow) a Spitter can shoot her acid at it. After several seconds, the can will ignite into flame with about the same size as a molotov. In the end, both Spitter acid and fire will be on the ground where the can was dropped, chipping off huge amounts of health for the Survivors.
 * As the Survivors, some find it best to work in pairs. A good example is Mall Atrium. Two Survivors stay near the car, while the other two traverse the mall tossing down gas cans to the lower Survivors. In a matter of a minute, upwards of four or five cans can be captured if executed successfully. If a gas can is dropped, pick it up as soon as possible. There is the constant threat of a Spitter possibly destroying your can and leaving you not only in the burning acid, but surrounded by fire.

Dead Center

 * Mall Atrium

Dark Carnival

 * Motel

Swamp Fever

 * Plank Country

Hard Rain

 * Milltown
 * Sugar Mill

The Parish

 * Park

Trivia

 * The videos previewing this mode were the first to show the Special Infected's new in-game appearances.