Members of the Free Syrian Army utilize a homemade mortar system nicknamed the "Hell Cannon" to target a distant Syrian Arab Army fighting position on the roof of a building.

This footage was recorded in 2014 during clashes over the city of Aleppo during the Syrian Civil War. It shows just how skilled the FSA fighters are with their homemade weapon systems. There is indeed a strong chance that this direct hit took several rounds before they were able to dial it in, but the fact that they were able to make the hit at all is incredibly impressive considering how simple the weapon system is.