Peru/Sniper Training from a helicopter

PERU, South American & American SOF just finished up joint training. Here is small clip of sniper training from a Helicopter. I'm not a great shot but was always able to qualify expert. Being in a chopper, I can't imagine the skill it takes to take out an engine of a moving vehicle or hit anything for that matter. Anyone every had the chance to try? if so how did you do? #rs24 #peru #specialoperations #afspecwar