ARC Raiders What We Left Behind Quest Guide: All Locations

ARC Raiders throws players into a desperate fight for survival, and scavenging for every possible advantage is key. Among the many missions you can undertake, the "What We Left Behind" quest stands out as a rewarding, multi-stage journey that sends you across the hazardous Xylos landscape. This quest tasks you with recovering valuable pre-war technology, offering some excellent weapon attachments for your trouble.
While the quest itself isn't a complex puzzle, knowing exactly where to look is crucial to completing it efficiently and without wasting precious time and resources. This guide provides a complete walkthrough for the What We Left Behind quest, detailing the precise location of each objective so you can claim your rewards and get back to the fight.
How to Start the What We Left Behind Quest
The What We Left Behind quest will become available as you progress through the main storyline and increase your standing with the game's factions. You don't need to do anything special to trigger it; simply keep an eye on your available quests, and it will appear in your log once you've met the prerequisites. The mission briefing will direct you to search for significant items left behind in three distinct locations, hinting at a past that holds the keys to a better future.
First Location: On Buried Ground
Your first objective takes you to the "On Buried Ground" map. This area is known for its treacherous terrain and hidden dangers, so stay alert as you navigate toward the objective marker. The item you're looking for is tucked away inside a specific industrial structure.
Step-by-Step Guide:
- Travel to On Buried Ground: Deploy into the map and make your way toward the quest's designated search area.
- Locate the Large Warehouse: You are looking for a large, partially destroyed warehouse building. It's a significant landmark in the area, often characterized by its corrugated metal walls and high ceilings.
- Find the Second Floor Office: Once inside the warehouse, you'll need to find a way to the second floor. Look for a set of metal stairs or a collapsed section of the floor that you can use to climb up. The objective is located within a small, abandoned office room overlooking the main warehouse floor.
- Collect the Item: Inside this office, you will find the first piece of rare loot resting on a desk or a shelf. Interact with it to secure the objective. A quest notification will pop up, confirming you've completed the first part and pointing you toward the next location.
Second Location: The Core
With the first piece of tech secured, your quest log will update and direct you to your next target in "The Core." This region is often more heavily guarded by ARC units, so be prepared for a fight. The objective here is hidden within a dilapidated residential or administrative building.
Step-by-Step Guide:
- Deploy to The Core: Head to The Core map and move toward the new search zone indicated on your HUD.
- Identify the Target Building: You are searching for a multi-story concrete building that looks like it was once an apartment complex or office block. Pay attention to its distinct architecture, which may include external walkways or balconies.
- Search the Upper Floors: The item is not on the ground floor. You'll need to find a way inside and ascend the building. Use stairwells or damaged sections to climb up. The target item is typically located in a corner room on one of the upper floors.
- Retrieve the Loot: The second piece of significant loot will be waiting for you, often placed on a piece of furniture like a filing cabinet or a small table. Interact with it to complete this stage of the quest.
Third Location: The Furnace
The final leg of your journey takes you to the industrial heart of the region, "The Furnace." This area is a maze of pipes, machinery, and catwalks, and it's easy to get lost. Precision is key to finding the final objective quickly.
Step-by-Step Guide:
- Enter The Furnace: Make your way to the final search area on The Furnace map. Be cautious, as ARC patrols are common in this high-value industrial zone.
- Navigate to the Central Processing Area: The final item is hidden deep within the main industrial complex. You need to find a central control room or a maintenance workshop that overlooks some of the larger machinery.
- Find the Hidden Nook: Unlike the previous two items, this one is more cleverly hidden. Look for a small, out-of-the-way room or a corner tucked behind some large pipes or machinery. It's often in a spot that requires you to actively look around corners and behind objects.
- Secure the Final Item: The last piece of pre-war tech will be on a workbench or a control console. Once you interact with it, the quest will be marked as complete.
What We Left Behind Quest Rewards
Completing this multi-part scavenger hunt is well worth the effort. For your dedication in recovering these lost relics, you will be rewarded with a set of high-tier weapon attachments. These can significantly improve the performance of your firearms, giving you a much-needed edge against the robotic threat.
Your rewards for completing What We Left Behind are:
- Muzzle Brake II
- Vertical Grip II
- Angled Grip II
These attachments are excellent for improving recoil control, stability, and aiming speed on a variety of weapons. Equipping them will make your arsenal noticeably more effective in sustained firefights.
Frequently Asked Questions (FAQ)
Q: What do you get for completing the What We Left Behind quest in ARC Raiders?
A: You receive three valuable Tier II weapon attachments: the Muzzle Brake II, Vertical Grip II, and Angled Grip II. These attachments improve weapon stability and reduce recoil.
Q: Is the What We Left Behind quest difficult?
A: The quest's difficulty comes from navigation and survival, not from complex puzzles. The main challenge is reaching each location safely, dealing with any ARC enemies you encounter, and knowing the exact spot to find the item. With this guide, finding the items themselves is very easy.
Q: Do I have to complete the objectives in a specific order?
A: Yes, the quest is linear. You must find the item in the first location (On Buried Ground) before the quest directs you to the second (The Core), and so on. You cannot collect the items out of order.