Arc Raiders Shoring Up Defenses Quest Guide (2026)

The Arc Raiders Shoring Up Defenses quest is the first mission you’ll tackle in the Riven Tides update. This quest sends you to the oceanfront map to destroy robotic threats and reinforce key defensive positions. All four objectives can be completed in any order, and you can even finish them across multiple raid sessions if needed.

Arc Raiders Shoring Up Defenses Quest Overview

The Shoring Up Defenses quest unlocks immediately after you complete the Off the Radar quest on the Riven Tides map. This is a foundational mission that introduces you to the new area’s key locations and enemy types. I found it helpful to tackle the objectives in a specific order, but the game gives you full flexibility.

Here are the four objectives you need to complete:

1. Destroy 5 Wasps
2. Destroy 3 Fireflies
3. Use 1 Arc Alloy to reinforce the Raider structure on top of any Stacking Yard crane
4. Board up shuttered windows in the hotel

Before heading out, make sure you have an augment with a safe pocket for storing your Arc Alloy. This rare material drops from the robotic enemies you’ll be hunting.

Step 1: Destroy 5 Wasps

Wasps are flying drone enemies that patrol the skies above Riven Tides. These targets move quickly and can be tricky to hit with standard weapons.

I recommend using long-range weapons like the Anvil or Ferro for this objective. These rifles give you the precision needed to pick Wasps off from a distance. Always aim for the propellers on their undersides – this causes critical damage and brings them down faster.

Wasps tend to spawn near the shoreline and industrial areas of the map. Listen for their distinctive buzzing sound to track them down. You don’t need to destroy all 5 in a single match – the counter carries over between raids.

Step 2: Destroy 3 Fireflies

Fireflies are heavily armored ground units that pose a much bigger threat than Wasps. These enemies are covered in thick plating that shrugs off standard bullets.

Bring grenades or explosive weapons for this objective. Fireflies have a powerful flamethrower attack that can melt your health bar in seconds. The explosion damage bypasses their armor and takes them down efficiently. I found that sticking to cover and lobbing grenades from a safe distance works best.

Fireflies patrol the inner areas of Riven Tides, particularly around industrial buildings. Like Wasps, your Firefly kills accumulate across multiple matches. Just keep an eye on your quest tracker to see your progress.

Step 3: Reinforce the Raider Structure at Stacking Yard

Stacking Yard is located in the northern section of the Riven Tides map. You will need 1 Arc Alloy to complete this objective. Arc Alloy drops from both Wasps and Fireflies, so you should naturally acquire some while completing the first two objectives.

Look for three large cranes at Stacking Yard. The middle crane is the most accessible option for reinforcing the structure. You need to reach the very top platform to find the interact prompt.

Follow these steps to reach the crane top:

1. Approach the middle crane at Stacking Yard
2. Look for the ladder on the side and climb to the first platform
3. Locate the zipline connecting to the upper section
4. Use the zipline to reach the top platform quickly
5. Find the sheet metal structure with the interact prompt
6. Hold the interact button to reinforce the structure using your Arc Alloy

The interaction takes a few seconds, so make sure the area is clear of enemies first. Once completed, you will hear a confirmation sound and see the structure visually reinforced with metal plating.

Step 4: Board Up the Hotel Window

The final objective takes you to Hotel Panorama Azzurro on the eastern side of Riven Tides. This is a large multi-story building that is hard to miss.

You need to board up a shuttered window on the second floor. The most reliable location is room 213 on the eastern side of the building, facing south. Many players have reported that different windows work for different sessions, but room 213 has the highest success rate based on community feedback.

Here is how to find the correct window:

1. Enter Hotel Panorama Azzurro from the main entrance
2. Climb the stairs to the second floor
3. Look for room 213 on the eastern side
4. Find the shuttered window with the interact prompt
5. Hold the interact button to board it up

If the window in room 213 does not have the prompt, try other shuttered windows on the second floor. The quest can sometimes trigger on different windows depending on your session.

Shoring Up Defenses Quest Rewards

Completing the Shoring Up Defenses quest grants you several useful defensive items. These rewards help you survive future encounters on Riven Tides and beyond.

You will receive:

• 3 Barricade Kits for fortifying positions
• 3 Lure Grenade Traps for ambushing enemies
• 6 Seeker Grenades for targeting threats

Beyond these items, completing this quest unlocks the Beachcombing map condition for Riven Tides. This allows you to start the next quest in the chain. You will also receive the Dockmaster’s Detector as a bonus reward, which helps locate hidden items on the map.

Frequently Asked Questions

Conclusion

The Arc Raiders Shoring Up Defenses quest sets the stage for your adventures in the Riven Tides update. By destroying Wasps and Fireflies, reinforcing the Stacking Yard crane, and boarding up the hotel window, you will claim valuable rewards and unlock the next chapter of content.

Once you complete this quest, the Beachcombing map condition becomes available. For more guides covering other Arc Raiders quests, check out our Arc Raiders Avian Alarm Project Guide. Good luck on your raids, and stay safe out there in 2026!