These maps have also been tweaked to remove exploits and to make the whole experience much harder. Players can hold out in 16 maps, 15 of which are extracts from Crescendo Events and finales from the four original campaigns. The anticipated Survival Mode is released, which pits The Survivors against endless waves of the horde, as well as multiple Special Infected.
For example, downstairs in the ' Boathouse Finale' has been significantly emptied to prevent corner camping, and more walls break open. These maps have been tweaked slightly to remove some closets and to balance gameplay. It is preloaded on the Game Of The Year Edition.įirst off, you can now play the two campaigns ' Death Toll' and ' Dead Air' online in Versus mode. The Survival Pack is completely free and is available through Steam and Xbox Live. Released on April 21st, 2009, the Survival Pack was confirmed by Valve on February 5th, 2009.