Actual gameplay footage. During the 1st phase you see the world is normal... but as time progresses Infected start to show up. They become more and more prevelant and the police step in. At this point, phase 2, you are able to assist the police and they will not attack you. You hit the final phase 3 when you are knocked out and wake to an abandoned city. You have access to a new gadget, a barricade that can be set up anyway you see fit... but becareful, you don't want to use it wrong. If you place yourself against a fence they can jump it. Overall I think it is the best Zombie mod i've seen and Molotov has plans to expand greatly upon it. Here is a link to his websight to get the most current version. http://contagium.altervista.org/ Here's a recommendation: Come well armed.