I am Ashley, game developer currently working in the Creating Worlds team. I am glad to show you the map we're making for Left 4 Dead 2: There is only one way. It is a co-op map and a survival map.
There are some features such as: Anamorphic lightning, custom OST (totally made by us), physics destructions in real-time, flamethrower running on gasoil, dynamic light generator running on gasoil, custom models, textures and decals, 4 natural disasters (meteors, storm, tornado of fire and earthquake) and more!
We also participate at the L4DMaps contest: "Natural Disasters"
EDIT: WE WON THE NATURAL DISASTERS CONTEST!
Now it's in a public beta, which you can:
If you can see more before downloading it, here there are some screenshots and trailers:
Highlight to read:
Some feedback would be really appreciated! I hope you enjoy the maps!