When I look for a L4D map, I'm looking for something interesting, with a bit of a challenge. Multi-layered maps with twists, turns, dead ends, backtracks... you know, something fun that will take some time to play. So when I read "...leads the survivors down into an old abandoned coal mine." in the campaign description for Coal'd Blood, I sure as hell wasn't going to pass it up. But does this campaign deliver? Read more...