The army's best shot watched in delight down the sights of his L96A1 rifle as the launcher bobbed along for 20 yards behind the wall... and paused. The point of the rocket dipped and aimed towards him. The enemy's face bobbed up into the crosshair. And Steve squeezed the trigger. He saw the face wobble with the impact. Half of it blew away. The grenade launcher fell back over the wall and disappeared... but only briefly. Seconds later it was back up, bobbing along the wall. Steve watched it until it stopped, and fired again as a second Taliban face...