this requires as much skill as it does to shoot a tank with a laser guided missile in BF3, you get lucky and sometimes you get a kill. this was incredibly lucky, but i've done this before and i didn't freak out. i said "hey guys, i just did a noscope off a building, haha" and they went "woah, you're pretty lucky" and we continued the game, we didn't begin screaming at the top of our lungs like a frightened tornado siren.