You knew it was coming. There are four great campaigns in Valve's zombie co-op, FPS Left 4 Dead... however there are just four. Leave it to the modding community to come to the rescue in one the greatest ways ever. Enter Author/Modder Darth_Brush and his remake of the iconic zombie backdrop of the Crossroads mall from the 2004 remake of Dawn of the Dead.
Originally created as a standalone mod for Half-Life 2, this map is being ported over to the PC version of L4D and will be available on l4dmods.com once it becomes ready. Until then enjoy this walkthrough of the level below.
Left 4 Dead Crossroads Mall Map