Survivors found a facility by a river that was abandoned shortly after the infection. They have taken shelter in the storage area underground for a month.
Death Valley is a fun survival map, where you hold off in a 4 story fort that has miniguns, barricades and a front door. This map has been tested and there are no glitches/errors(That I know of).
Just a quick survival map, supposed to be a bunker in the forest. Formerly named Edifice, I gave this map a huge makeover with textures and scenery, and it is now a bunker set in a forest.
All that's left is one little shack, a huge friggin mountain, and twenty million zombies. A little unnerving to see them crawl over the barricade like it's a speed-bump in order to get at your flesh.