Not much detail available on this video. However it shows an interesting response to a car fire.
It looks like the fire is on some kind of limited access interstate type highway. Engine sets up above the fire and a hose line is dropped down. A second later a firefighter slides down the line and starts the fire attack.
By the looks of the gear and the vehicle, I doubt this took place in a country where most of my readership comes from. Thus view this for general entertainment value and not look at it as an example of tactics. We can all acknolwdge different parts of the world have different PPE use and safety standards.