Note: This trick is much easier with two players. As soon as you start, you will be greeted by a Juggernaut. Shoot him in the head with the sniper rifle a few times. Note: There may be other enemies, and the Juggernaut may not appear until you enter the safe house. Once you clear the bottom floor, go to the armory in the basement. If you have two players, have the person that is better at sniping collect the WA2000. Stock up on ammunition. The ammo containers are difficult to find; you must search carefully for them on the right side. After you collect your guns, clear the main floor and the top floor. Once you clear the house, have the player with the sniper rifle walk upstairs and go to the room to the left. Once they enter that room, go to the windows by the table with the sentry gun on it. Snipe out of that window (it is located in the front of the room). Have the other player guard the door while standing at the top of the stairs. Multiple Juggernauts will come through the front doors. Plant a claymore at the bottom of the stairs to slow them down. If you partner sees one, he or she must alert you so that you can use the sniper rifle on him. Keep repeating this until you complete the mission. If you need more claymores or ammunition, the armory is in the basement.