If you’re looking for one of the best early-game quests in ARC Raiders, What We Left Behind should be at the top of your list. It’s low-risk, requires no special gear, and rewards you with Tier II weapon attachments that remain valuable well into mid-game progression.
This complete step-by-step walkthrough covers:
·Exact objective locations
·Safe extraction routes
·Loot opportunities
·Full breakdown of the weapon attachment rewards
·Which weapons benefit most
·Why completing this quest reduces your need to buy ARC Raiders BluePrints early
Best of all, you can run this quest using free loadouts, allowing you to preserve high-value ARC Raiders Items for later missions.
Quest Overview: What We Left Behind
This quest includes three objectives, each located on a different map:
·Buried City
·Dam Battlegrounds
·Spaceport
No special consumables are required. Because the objectives are mostly navigation-based rather than combat-heavy, you can safely use basic gear and avoid risking rare ARC Raiders Items.
After completing all three objectives, return to Tian Wen to receive your Tier II weapon attachments.
Objective 1: Parking Garage – Buried City
Your first task takes place in Buried City, specifically at the Parking Garage near the Hospital landmark.
Step-by-Step Instructions
1. Spawn into Buried City.
2. Head toward the central Parking Garage.
3. Enter and locate the elevator.
4. Interact with the elevator to breach it.
Important tips:
·The breach works on all floors.
·The ground floor is recommended due to fewer environmental hazards like Pops or Fireballs.
·After breaching, take the zipline downward.
·Close doors behind you to slow the pursuing Raiders.
At the bottom, you’ll find a Raider Camp.
Search two containers inside the camp to complete the objective.
Bonus Loot Opportunity
There is a chance for a weapon crate to spawn here. These crates can drop Purple rarity weapons, making this location worthwhile even outside the quest.
Safe Extraction Route (Buried City)
After completing the objective:
·Jump out of the nearby window.
·Turn right twice.
·Head down into the metro station.
This path typically offers a safer extraction route compared to open streets.
Objective 2: South Swamp Outpost – Dam Battlegrounds
Next, deploy to Dam Battlegrounds and head to South Swamp Outpost.
This location resembles a silo-shaped structure and can be confusing because of its multiple entry points.
Step-by-Step Instructions
1. Enter South Swamp Outpost.
2. Use any of the open gaps around the building to get inside.
3. Locate the interactable item in one corner of the structure.
4. Interact with it to complete the objective.
The objective is straightforward once inside. If the structure looks like a silo, you’re in the correct place.
Objective 3: Container Storage – Spaceport
The final objective takes place on the Spaceport map, near Container Storage, also known as Bilgunn’s Hideout.
Step-by-Step Instructions
1. Spawn into Spaceport.
2. Move toward the right side of Container Storage.
3. Look for a broken wall section allowing crossover access.
4. Be cautious-this area can expose you to sniper fire.
5. Locate the metal container mounted on the wall.
6. Find the ladder and climb up.
7. Grab the notes to complete the objective.
Once collected, you can extract immediately.
What We Left Behind Rewards – Tier II Attachments Explained
After returning to Tian Wen, you’ll receive three Tier II weapon attachments:
·Muzzle Brake II
·Vertical Grip II
·Stable Stock II
These attachments provide meaningful upgrades and remain useful well beyond the early game.
Muzzle Brake II – Best Weapons
Best paired with:
·enegade
·Bettina
·Kettle
Benefits:
·Reduces recoil
·Improves sustained fire accuracy
·Enhances automatic weapon control
This attachment is ideal for high fire-rate weapons where recoil control directly impacts DPS.
Vertical Grip II – Best Weapons
Best paired with:
·IL Toro
·Vulcano
·Arpeggio
·Hullcracker
Benefits:
·Controls vertical recoil
·Improves stability during prolonged engagements
·Ideal for heavier rifles
If you struggle with recoil climb, this attachment makes a noticeable difference.
Stable Stock II – Best Weapons
Best paired with:
·Stitcher
·Osprey
·Rattler
·IL Toro
Benefits:
·Improves weapon steadiness
·Enhances mid-range tracking
·Supports hybrid combat builds
This is especially strong for players who prefer consistent tracking over burst damage.
Why This Quest Is So Valuable
Completing What We Left Behind early provides:
·Strong early attachment upgrades
·Reduced the need to buy ARC Raiders BluePrints immediately
·Better performance in mid-tier fights
·More efficient resource farming
Instead of spending valuable Coins to buy ARC Raiders Blueprints for attachment crafting, you earn powerful upgrades through quest progression.
This preserves your currency for higher-impact investments later.
Risk Management Tips
To minimize losses:
·Use free loadouts.
·Avoid engaging in unnecessary PvP.
·Close doors behind you.
·Extract immediately after completing objectives.
·Preserve rare ARC Raiders Items for higher-stakes missions.
This quest is about map knowledge, not combat dominance.
Final Thoughts
What We Left Behind is one of the best early quests in ARC Raiders. It teaches navigation, encourages safe extraction habits, and rewards players with attachments that genuinely improve weapon performance.
By completing it early, you:
·Strengthen your loadout
·Save currency
·The need to buy ARC Raiders BluePrints prematurely
·Preserve valuable ARC Raiders Items
·Build a solid progression foundation
If you’re starting fresh or entering a new Expedition, prioritize this quest. It’s efficient, rewarding, and low-risk – exactly what early progression should be.