Techniec
Drugs and Kalashnikovs
That's not the point of fire movement and fire and maneuver tactics. This was a poorly trained individual, most likely belonging to a Reserve/National guard unit. The Army (NG) is notorious for this.
Considering he had a carbine and not a SAW, his single rifle provides nowhere near the volume of rounds to provide acceptable suppressive fire. This dude was sitting there, standing off in the open, with no concealment and no cover, while silhouetting himself against the sky, and nowhere near angle to effectively shoot or have his rounds fall into a beating zone that might actually prove somewhat useful.
What he did was try to play hero, got lit by some poor marksman (you can see the enemy rounds miss him considerably throughout the video) or someone shooting from an extremely long range (most likely scenario), and now had to put his squad/platoon in danger by trying to save his ass.
There is a reason why units maneuver in fire teams or squads, and not as individuals.
damn son