Left 4 Dead 2 Gridlock v.6.0

Description
Following the events of Crash Course the survivors find themselves trapped on a free-way intersection surrounded by the infected horde. If it seemed like the world was coming to an end before it certainly does now! Volcanic activity has suddenly started occuring on a massive scale resulting in deadly lava flows and destructive earthquakes.
Breaking down on an unstable freeway during an earthquake just adds to the string of bad luck the downtrodden survivors have dealt with! Now they must fight their way off the freeway. But once they reach the ground they'll have to watch out for lava flow.......
How to install:
1.Extract the archive
2.Copy the ihatemountains2.vpk file to ��\Steam\steamapps\common\left 4 dead 2\left4dead2\addons