The Stench of Corruption is one of the several new quests that you can complete in ARC Raiders as part of the Cold Snap update.
To activate the quest, you’ll have to clear the base game content and then speak with Shani. This guide will help you complete all tasks of this quest to unlock all the available rewards.
ARC Raiders Stench of Corruption quest walkthrough
To begin the Stench of Corruption, you must complete A Toxic Trail first. Once you complete A Toxic Trail, you’ll get a Spaceport key, which is required to complete the Stench of Corruption quest.
The Stench of Corruption quest can be broken down into the following parts.
- Reach the southwest lobby of the Departure building
- Find the staff locker room
- Search the room for any clues to the saboteur’s identity
- Reach the tunnels below the Spaceport
- Use the key on any Flushing Terminal to override the bypass protocol
The first task is to enter the Departure building from the location marked on the screenshot below. Head in and turn right. Head straight, take a left, and you’ll find a set of stairs that go down to the staff locker room. You’ll have to search the room for clues related to the saboteur.

You’ll find a couple of hazmat suits in the room. Interact with them to complete the third task of this quest. You’ll get a Flashing Terminal key. Make sure to add it to your safe pocket.
With the key safe in your inventory, exit the building and head to the tunnels. Use the caved-in roof to enter, and then head to the location marked on the screenshot below. You’ll find a terminal where you can use the key that you just found.

Once you complete the quest, you’ll also unlock the Warden outfit to add to your in-game inventory.