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ARC Raiders
What We Left Behind ARC Raiders Quest: Locations & Rewards
What We Left Behind is an ARC Raiders quest from Tian Wen, one of the traders in Speranza, and it unlocks after finishing Shani's Dormant Barons quest. Unlike most early quests, it can't be finished in a single raid, since each of its three objectives sits on a different map.
Every stop is a small area inside a bigger point of interest, so finding the right building and the right item takes most of the time. Exact locations for all three objectives, the rewards and the next step in Tian Wen's quest chain are covered in this guide.
What We Left Behind Quest Summary
What We Left Behind is an ARC Raiders quest from Tian Wen that unlocks after Dormant Barons.
Objectives take place on Buried City, Dam Battlegrounds and Spaceport, so the quest needs three separate raids.
Buried City's part means searching 2 containers in the Raider Camp beneath the Parking Garage.
On Dam Battlegrounds and Spaceport, players search the yellow-marked item in the South Swamp Outpost and Bilguun's Hideout.
Rewards include Muzzle Brake II, Vertical Grip II and Stable Stock II, with Broken Monument as the next quest.
What We Left Behind Quest Objectives
Tian Wen gives one objective for each map. These are the exact tasks from the quest:
Buried City: Search 2 containers in the Raider Camp beneath the Parking Garage.
Dam Battlegrounds: Search for anything significant in the South Swamp Outpost.
Spaceport: Search for anything significant in Bilguun's Hideout, next to the Container Storage.
Each map is a separate raid, so What We Left Behind takes at least three matches to finish. "Anything significant" means the item marked with a yellow search icon inside the right building, not random loot. Spaceport, Buried City and Dam Battlegrounds all appear in the full map list, which helps with planning the route to each objective.
1. Buried City: Raider Camp Under the Parking Garage
Buried City's objective is underground. Head to the Parking Garage and breach the lift door inside it. Behind that door, a zipline drops to the lowest level, a room mostly buried in sand where the Raider Camp sits.
Once down in the camp, search any 2 containers to complete this part of the quest.
Tip: Parking Garage often draws ARC machines, including inside the building, so bring extra healing items and keep cover close while opening containers.
2. Dam Battlegrounds: South Swamp Outpost
Dam Battlegrounds' objective is in the South Swamp Outpost. Go into the outpost's main building, a large round structure that looks like a silo or tower, and enter through one of its open gaps.
Inside, look for papers with a yellow search icon. Searching them completes the second objective, and nothing else in the outpost needs to be looted for the quest.
3. Spaceport: Bilguun's Hideout Location
Spaceport's objective is the hardest one to find. Head to Container Storage in the middle of the map, then look at the large wall on its east side. Bilguun's Hideout is the metal structure built on top of that wall.
Players can reach it in two ways:
Ladder: Climb the ladder that leads up from the ground to the hideout.
Broken wall: Climb up the ruined sections of the wall and walk over to the hideout.
Once inside, search the yellow-marked notes to finish the last objective.
Tip: Climbing leaves players exposed to Raiders below, so a quick look around Container Storage before going up the ladder or wall saves a lot of trouble.
Some guides spell it Bilgunn's Hideout, but the quest itself calls it Bilguun's Hideout, which is the name to look for on the map.
What We Left Behind Rewards
After all three objectives are done, return to Tian Wen to claim the rewards. What We Left Behind gives one of each of these weapon attachments, along with what they do and weapons they suit:
Reward | What It Does | Good Weapons for It |
|---|---|---|
Muzzle Brake II | Reduces vertical and horizontal recoil | Renegade, Bettina, Kettle |
Vertical Grip II | Reduces vertical recoil | Il Toro, Vulcano, Arpeggio, Hullcracker |
Stable Stock II | Speeds up recoil and dispersion recovery | Stitcher, Osprey, Rattler, Il Toro |
Finishing the quest also unlocks Broken Monument, the next quest in Tian Wen's chain. Players who want more gear without the grind can find ARC Raiders items for sale on GameBoost.
Tips for Finishing What We Left Behind Faster
These tips help finish all three objectives with fewer wasted raids:
Use a free loadout. None of the objectives need items brought back, so a free loadout in ARC Raiders means nothing valuable is lost if the raid goes wrong.
Plan one map per raid. Each objective needs its own match, so pick the map, go straight to the objective and extract.
Look for the yellow icon. In the South Swamp Outpost and Bilguun's Hideout, only the yellow-marked item counts toward the quest.
Bring healing items. Buried City's Parking Garage often has ARC machines around, even with a free loadout.
Check the map condition first. ARC Raiders map conditions change how a map plays, so a quick look before dropping in avoids surprises.
FAQs About What We Left Behind in ARC Raiders
Final Words
What We Left Behind looks long because it spans three maps, but each objective is a quick stop once the right building is found. Buried City's Raider Camp sits under the Parking Garage behind a breachable lift door, Dam Battlegrounds' papers wait inside the South Swamp Outpost's main building, and Spaceport's notes are in Bilguun's Hideout on the wall east of Container Storage.
Since nothing has to be brought back, a free loadout and one map per raid keep the risk low. Muzzle Brake II, Vertical Grip II and Stable Stock II all cut recoil or speed up recovery, which makes them useful on weapons like the Stitcher, Rattler and Kettle, and finishing the quest opens up Broken Monument as the next step with Tian Wen. Raiders who keep running into heavier ARC machines can also read up on killing Bastions in ARC Raiders.
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