Nearthe top of the map is building with two windows that overlook the whole area. Note: Other players will try to get you.
Enter the house next to the burning house. Stand on a windowsill and face the side. You should fall on a ledge below.
Enter the burning house, then go up the steps and out the window in the same way to hit a ledge below.
Go to the building in the centerof the map (near the building on the far left). Go up the stairs. Turn left at the top and turn left again. You should see a wall you can climb over. Climb over it and you should be on a small ledge. Note: Rather than trying to climb onto the ledge all at once, you can climb onto the wall sticking out, then climb onto the ledge. This is a great sniping location. Also, if there is someone in the building already, you can climb onto the ledge from the outside, although this may require a few attempts.
At the bottom of the map is a building with a ladder. Climb the ladder to reach a good sniping location. It is hard for people to get to you because the only way in is up the ladder.
Go into the burning building through the door that is near the middle of the map. Go through the building and out the other door. Turn left and climb up the boxes and wall. Turn right and jump to the ledge. Get prone and it will be a great sniping location.