The only way to kill someone would be at point blank -- meaning that this scene from a war drama renowned for its harrowing realism is less accurate than the final underwater fight in Lethal Weapon 4 (a movie which features a laughing gas sequence).
The act of sandwiching kooky horseshit with stark reality happens way more than we'd like to realize. Collateral gave Tom Cruise expert technique in taking down two guys in an alleyway before conducting a ridiculous John Wick-style nightclub shootout a few scenes later. The Way Of The Gun consulted with a Navy SEAL to portray realistic room-clearing tactics before having the characters walk off limb-destroying gunshot wounds. The Bourne Identity is known for its grounded depiction of CIA operations -- which apparently involve bullseyeing guys while air-surfing a corpse Legolas-style.
He then gives the corpse back to the kid he stole it from, as Biff eats manure.
This macabre clowny moment, by the way, is brought to you by the alphanumeric PG-13 -- a rating that in the last 30 years has grown to contain more scenes of gun violence than its "adult" R successor. That's right: PG-13 makes up for not having all that awful sex and bad words with an obscene hell-swarm of lead deposits. Movies like the new Robocop, the Men In Black series, Terminator Genisys, Transformers, and Mission Impossible can kill as many people they want ... if we don't see any blood or pesky consequences to the violence. And so, for some backward-as-fuck reason, Agents Jay and Kay can blow an unarmed guy's head off, shoot up a restaurant full of people, and bash someone's head in, and it's family fun as long as cartoony alien blood squirts out at the end.
It's funny because he isn't like us!
And somehow, I've only just begun to tell you how howling bananas the Men In Black films are ...