Stench of Corruption is a quest in ARC Raiders that is introduced with the Cold Snap update. The quest is set on the Spaceport map and requires careful planning and execution to complete it in one raid. The guide will show you which route to follow, what you need to do, and how to get the Warden Outfit without having to go back and forth on the map.
The Starting Point

You get the quest from Shani. First thing you need to do is go to the southwest side of the Departure Building. The building has lots of broken wall areas; simply use one of the openings to go inside the building.
After you enter the Departure Building, follow the internal layout illustrated on the map above to find the staff locker area on the ground floor. Keep following a direct path, keeping to your right to reach the area.
Note: Using the direct route would help avoid any detours.
Identifying the Saboteur Clue

Located at the far end of the locker room is a space suit. To progress further, you will have to utilize this spacesuit. Interacting with the suit will cause a Flushing Terminal Key to drop. Collect the key immediately and place it safely in your secure container.

Leave the Departure Building and go outside. You will find an opening that leads to the tunnel system beneath the Spaceport. Jump in and continue forward.
Overriding the System

There is a Flushing Terminal somewhere along the path in the tunnel. The key that you obtained earlier can be used to open this Flushing Terminal and override the bypass protocol. This last interaction completes the quest.
Finishing every step in one raid unlocks the Warden outfit, which becomes available immediately after the quest is turned in.
