How do you beat the game save the witness

well on lvl. 1 you shoot the car. on 2 you shoot the bulb as soon as she poots the pot down, on 3 you shoot on 4 you shoot the fire alarm as soon as he sits at his computer desk, on 5 you shoot the street lamp as soon as the sniper comes out, and on 6 you shoot the guy crouching first, but after he walks out the door, the as he passes the other gourd you shoot the other gaurd, then him, and on 7 you shoot the guy all the way to the left