In Killing Floor 3 they added such a mechanic as finishing off (well, like in Doom). This mechanic is very useful in Hell on Earth, because there are a lot of these scrapes and flashes and without it it is more difficult to survive

You can stun him by shooting his saw, it is better to do this with a sniper who has an upgrade for armor-piercing rounds (it is possible without, but it is still easier) and upgrades for armor penetration (you can also add upgrades for the rate of fire to quickly take him down).

And so, you should shoot exactly at the base of the saw, not at the chain itself and the long part, but at the wrist.
While you shoot, you will hear a characteristic sound of metal and the saw will be exposed, and the scrake will be thrown back a little, we continue shooting until the saw explodes and the warrior of the saw will not kneel down to rest. At this time, we make the final touch, press V (or the key on which you have the finishing move).

With a flash drive the method is different, it has a red light in its chest (or what it is, I don’t know).

We shoot there until we also hear the characteristic sound of metal and after that part of the armor will fall off, we shoot further and poor flashpound also kneels to accept the gift of God, it is a grenade.

During the game on HoE I did a lot of finishing moves and figured out how and what.
It turned out that there is also a characteristic light on the back and if you shoot at it, then flashpound will be stunned even faster, but it is not always possible to shoot there, since it simply does not turn its back, only if it is already going after someone, and you are in the back.

During the finishing move, you don't take damage and blow up all the zeds that are near you.
If there is a flashpound or a scrake with an exposed weak spot near you, it can also explode and you can immediately do the next finishing move.
It happens that you press V and stand there for about 5-7 seconds and nothing happens, after which the animation starts (features of the release hehe).

I'll repeat for the sniper and the pumped up snap (my first sniper is generally improved mainly for damage) it's easy to do, you just need to be brave, throw a cryogrena, scrake stuns, you shoot or you can throw an electric trap instead of a cryogrena, just use a fastik while there's time.

I haven't played for the berserker yet and I don't know how things are with this. But he seems to be okay with katanas, I've seen people just take him out without a chance.

I played the same way on Commandos, things are more complicated there, but if you pump up the machine gun for damage and the corresponding buffs, then it's not so hard, except that there are problems when there is nothing to stun or someone is already ♥♥♥♥♥♥♥ you in the back.

Over the course of my time, I've done a lot of reprisals and this is a must-have...

In the end I want to say that it is not so difficult to kill them when you know where to shoot.

set classes there or whatever in steam and good luck in winning Hell On Earth.