It's basically a stick figure animation clip. You can see the remains of that creators past from the animation of the soldiers and the scene inside the building. So he knew exactly what he is animating there.Also, that short film was ridiculous. Maybe it had some decent animation, but I'm always greatly annoyed by a setting where enemies couldn't hit a barn door two meters away, yet the MC makes every bullet count perfectly. It won't get any praise from me. If you go through the trouble of animating something, at least think about what you are animating a little bit more carefully. Such wasted work and effort.
I don't see how it would be a waste since that stuff is all about choreography and the John Wick factor.
this is basically the same thing.
(also kinda the cookie cutter formular for anime fights/baddass MCs, even in western movies.)