The guns do not kill in 3-4 seconds, the math has been figured out and demonstrated multiple times of how powerful the guns are in this game. From a full health to a 2nd wind the fasted gun is the minigun and the machine gun (SAW) at point blank range without missing a single shot which is 4.5 seconds. This requires point blank and not missing a single shot with these guns btw. Damage decreases on all weapons the further away you are from them so this number just goes up. The regular weapons like assault rifles and SMGs take at least 7 seconds, against at point blank and not missing a single shot.
This is essentially emptying two mags into a pred at point blank without missing to get these results to simply 2nd wind the predator.
So no the math doesn’t work out that they magically can take out a predator in 1 second, even if it was standing still and everyone point blanked him with machien gun fire, not ignoring the 2nd wind, as well as perks which also can offset this even more.
Again this is unrealistic scenarios as typically if a predator is being point blanked and the FT is not missing, the predator is doing something very wrong, and these numbers all nearly triple in time it takes to kill at just around 40-50ft away, where hitting with every shot becomes even harder.
Pred players keep using the bogus damage numbers in the unlikely scenario where no one misses and is firing at point blank range and not including perks, being able to move, cloak.
I’ve seen predators melt in seconds yea, because they play bad.