Achievements in Ready or Not range from deceptively easy to painfully hard, and as far as the Toxic Fumes one goes, it falls mostly under the former camp. It's a straightforward Trophy to achieve, but as with everything else in the game, it's going to take a bit of effort to unlock.

Toxic Fumes isn't as hidden as The Devil or Temperance achievements in Ready or Not, but it will have players going through some hoops. Thankfully, it's not hard to get, and some players might end up unlocking it without trying if they're gunning for an S-rank score for all missions in the game.

Solder holding a shotgun and another holding a riot shield and pistol
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Ready or Not: Toxic Fumes Trophy Guide

RoN Twisted Nerve main house entrance

To unlock this achievement, all players need to do is complete the Twisted Nerve mission in Ready or Not while using a CS Gas-oriented loadout. Specifically, you'll need to bring the following:

  • VPL-25 Rifle
  • Gas mask
  • CS Gas grenades

One important thing to note about the Toxic Fumes trophy is that you absolutely cannot use anything else when attempting it. The TRPL pistol and TPL SMG do not count toward this achievement despite being pepperball guns like the VPL-25, and the Beanbag Shotgun is completely out of the question.

The achievement's strict requirement also means you cannot use Flashbangs, Stingers, sidearms, or any of the M320 grenade launchers (including the M320 Gas).

AI Teammate Loadouts

RoN Toxic Fumes Loadout

Like other RoN achievements with loadout restrictions, NPC teammates can use anything without jeopardizing your odds of success. It doesn't matter if they go lethal or not, but if you want to get an S-rank on this mission, then arm them with the same loadout you have.

Things to Avoid

Ready or Not is very strict when it comes to loadout-based achievements, so if you're not unlocking Toxic Fumes even after clearing the mission with the right gear equipped, here are some things that might have caused your run to fail:

  • Lockpick Gun
  • Any Long Tactical gadget
  • Any grenade or tactical device other than CS Gas

As much as possible, don't even bother bringing out any of these items. The minute you interact with anything in the world using them, the achievement will get invalidated.

To be extra safe, make sure to convert all of your secondary weapon magazines into primary weapon mags. Not only do you get more ammo, but it also completely eliminates your sidearm as something that might potentially ruin your attempt.

Best Way to Get the Toxic Fumes Achievement

Ready or Not Twisted Nerve AI Breaching

If you've tried completing Twisted Nerve several times without getting the achievement, try letting your AI teammates do everything for you. Much like in the Way Out West trophy, Toxic Fumes can be completed without you ever having to fire a shot or interact with anything. Just order your team to take care of everything for you. Still, make sure that you yourself satisfy the loadout requirement and that you're playing on Standard difficulty or higher.

If the achievement still isn't popping for you, try disabling any mods you have installed.

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Ready or Not Tag Page Cover Art
Ready or Not
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8 /10
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Released
December 13, 2023
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WHERE TO PLAY

DIGITAL
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ESRB
Mature 17+ / Blood and Gore, Drug Reference, Intense Violence, Sexual Themes, Strong Language, Users Interact
Developer(s)
Void Interactive
Publisher(s)
Void Interactive
Engine
Unreal Engine 4
Multiplayer
Online Co-Op
Genre(s)
Tactical, FPS
OpenCritic Rating
Strong
How Long To Beat
16 hours
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