ARC Raiders: How to Unlock the Hidden Bunker Full Guide A step-by-step walkthrough to activate antennas, find the bunker entrance, secure high-tier loot, and extract safely

The Hidden Bunker event is one of the biggest, lobby-wide challenges in ARC Raiders, turning Spaceport into a chaotic race for antennas, XP, and high-tier loot. This guide covers how the event works, how to activate every antenna, where to find the underground bunker, and how to survive the PvPvE crossfire.

🗺️ Event Overview

The Hidden Bunker is a major Spaceport event that affects the entire lobby. Every squad — and every solo player — competes to activate antennas, unlock the vault, and loot as much as possible before extracting.

Key event details:

Map: Spaceport
Event Type: Major dynamic condition
Duration: ~40 minutes
Players: Entire lobby participates
Objective: Activate four antennas → open bunker
Rewards:
- 500 XP per bunker terminal (8 total)
- High-tier loot, breachables, caches
Risk Level: Very high (PvPvE hotspot)

📍 Finding the Hidden Bunker

The Hidden Bunker sits in the southwestern corner of Spaceport, located between Fuel Lines and Fuel Processing. Look for large metal blast doors embedded in the sand-covered hillside. Multiple entry points circle the mound, making this location a magnet for player encounters.

Before the bunker can be entered, all four antennas scattered across Spaceport rooftops must be activated. These antennas appear on the in-game map as white satellite icons.

📡 How to Activate All Four Antennas

Activating antennas is the most dangerous part of the event — each activation triggers ARC reinforcements and alerts the entire lobby.

Step-by-Step Breakdown

1. Locate the Antennas

Open your map immediately. The four antennas are clearly marked, but their rooftop locations change every event session.

2. Bring the Right Gear

Some rooftops require special access. Recommended gear includes:

Ziplines (for locked or elevated rooftops)
Mid-range and long-range weapons
Healing items
Quick mobility tools

Especially tricky antenna locations include North Trench Tower and South Trench Tower, which often require ziplines or keys.

3. Activate the Console

Interact with the antenna console. This sends a lobby-wide alert and spawns Wasps, Hornets, and other ARC units onto your rooftop.

4. Defend and Finalize Activation

Eliminate incoming ARC waves, then interact with the console again to complete the signal transmission. This must be done for all four antennas — and different teams can help activate them simultaneously.

🛢️ Inside the Hidden Bunker

Once all antennas are activated, the bunker opens and players rush underground for XP and loot.

Inside, you’ll find:

Eight terminals worth 500 XP each
Breachable crates and containers
High-tier caches and armor
ARC enemies hiding in dark corners
Rival squads competing for the same loot

To download data from terminals, stand nearby until the green meter fills — then collect the data. Be aware that players often camp hallways or retreat points.

Extraction is critical: If you die before leaving, all collected loot is lost.

🎒 Pro Tips for Hidden Bunker Success

Players who approach the event with a plan have a dramatically higher success rate. Here are key strategies:

Coordinate with teammates — Squad runs are far easier than solo attempts.
Clear hostiles before downloading — Interaction locks you in place briefly.
Plan your escape route — The closest elevator sits around 100 meters north of the bunker.
Use free kits for practice runs — Losing gear inside the crowded bunker can be costly.
Bring flexible loadouts — You’ll fight both rooftop threats and close-quarters enemies underground.

📺 How to Watch Hidden Bunker Runs

For players looking to study optimal antenna routes or bunker strategies, there are several viewing options:

Official Streams: Embark Studios streams developer runs on Twitch.
YouTube Guides: Search for bunker walkthroughs and route breakdowns.
Community Discord: ARC Raiders’ Discord features shared gameplay clips and group coordination for full event runs.

❓ Frequently Asked Questions

Can the Hidden Bunker be completed solo?

It’s possible but extremely difficult due to enemies spawning during antenna activation and constant PvP pressure. Squads have a much higher success rate.

Do antenna locations stay the same?

No. Antenna locations randomize each session. Always check the map right after loading into Spaceport.

🎯 Final Thoughts

The Hidden Bunker is one of ARC Raiders’ most rewarding and chaotic activities, blending PvPvE action with a race for rare loot and huge XP rewards. With smart routing, teamwork, and the right gear, players can reliably crack the vault and extract with high-tier upgrades.