A British base in southern Afghanistan was taking sniper fire, and they couldn’t spot the sniper immediately:
The reason for this was a clever gambit by the sniper, who was firing from a nearby compound, via a small tunnel dug through the wall of the compound, terminating in a 30×15 cm (12×6 inch) opening to fire out of. To further conceal his position, he had some nearby associates fire assault rifles and a machine-gun just before he took his shot at the British. To further conceal himself, the sniper only fired three times a day.
The British would not say how many soldiers the sniper hit, but the British quickly identified seven possible firing positions. The sniper was then tricked into firing again while the seven suspected sites were being observed, and this revealed the small hole in the wall as the location. A British Apache helicopter gunship was standing by, and it fired a Hellfire missile which, because of its laser guidance, hit the small firing hole, killing the sniper and one of his spotters.