Pest Control Achievement

[Maeks]

I swear for the life of me I've been EVERYWHERE in RX-TECH mines and killed every possible mutant (including the jumpscare one) and I don't get the achievement. Am I missing something?

[Liferake]

I'm not sure which one you may have missed but the easiest one to miss is on the middle minecart route.
When you reach the deep chasm; there is a pointless dead-end opening with a mutant visible from it that is very easy to miss and just smoove right past. Its most likely that guy. You most likely got the mutant at the base of this chasm as well as the ones on the way to the crowbar; if that helps you remember where this is.

[Maeks]

Originally posted by Liferake:

I'm not sure which one you may have missed but the easiest one to miss is on the middle minecart route.
When you reach the deep chasm; there is a pointless dead-end opening with a mutant visible from it that is very easy to miss and just smoove right past. Its most likely that guy. You most likely got the mutant at the base of this chasm as well as the ones on the way to the crowbar; if that helps you remember where this is.

Thank you for the reply. I did kill that one though. I also made sure to kill each enemy with explosives in case you were supposed to not leave "evidence" behind lol

[prodrummer18]

Originally posted by Maeks:

I swear for the life of me I've been EVERYWHERE in RX-TECH mines and killed every possible mutant (including the jumpscare one) and I don't get the achievement. Am I missing something?

I was in the same boat as you but I ended up finding it. There is 3 in the very last room with the tiki statues. 2 on the opposite side of the chasm and 1 on the side you come in on but up and behind. He's in a little snowy alcove.

[kuncajs]

So after trying it a few times, I discovered that when using explosives (grenades or rockets) that achievement does not pop.
I had to use DEagle and then I finally got it.

It also seems that it is fine if the flamethrower guys kill them, but I cannot verify that.

[Caspian Roach]

A tip for anybody searching for this achievement name:

The two mutants I missed on my first achievement run-through are

in the crowbar room, if you don't go to the far left corner of the room, one of the monsters will not spawn.

In the main hub, inside the hut at the top (easy to miss because there's no point going inside)

Another easy to miss is the mutant in the dark flickering tunnel that ONLY spawns if you go underneath and crawl towards the shotgun ammo pickup.

I don't know if killing the first two mutants in the level yourself matters, but I did that too.