This is the first map in chapter one of the mod. In this map you start out on a train. and once you get to the wreck, you are first introduced to zombies. You will see a few zombies jumping the tanker truck which is on fire. (see picture 1 for the view of the truck).
The second picture is a view of a battle scene between the combine and the zombies. (see picture 2) This is suppose to just get across the point that the city is infected.
The 3rd picture just shows the other portion/ side of the map and is just another view of what the map looks like in general. (see picture 3)
The fourth and final picture just shows the roadblock and the combine shield wall. It also shows the building in which the zombies jump off. (see picture 4)