The best Arc Raiders weapon attachment blueprint farm on Spaceport is not inside the Hidden Bunker.

It is around it.

During the Hidden Bunker event, rare blueprint spawns can appear in residential-style containers across Spaceport, not just inside the bunker. That means we can skip the lobby-wide bunker brawl and farm quieter buildings for level 3 attachments, utility blueprints, and even the Volcano Blueprint.

The route is simple: loot drawers, blue suitcases, breach rooms, guard towers, and security offices while everyone else fights over one room.

• Why the Spaceport Hidden Bunker Farm Works
• Best Containers for Weapon Attachment Blueprints
• Recommended Loadout for the Route
• Safe Pocket Priority
• Best Spaceport Blueprint Farming Route
• Step 1: Check Spawn Towers and Early Drawers
• Step 2: Loot Flight Control
• Step 3: Clear the Departure Building
• Departure Loot Checklist
• Step 4: Hit the Departure Breach Room
• Step 5: Check the Guard Tower
• Step 6: Loot the Arrival Building
• Arrival Priority List
• Step 7: Farm the West Security Offices
• Extraction Strategy: Do Not Die With the Bag
• Common Mistakes That Ruin This Farm
• FAQ
• Can weapon attachment blueprints spawn outside the Hidden Bunker?
• What is the best container for blueprint farming?
• Can the Volcano Blueprint drop outside the bunker?
• Should we still enter the Hidden Bunker?
• What should I bring for this farm?
• Summary

↖ Why the Spaceport Hidden Bunker Farm Works

Most players make the same mistake: they hear Hidden Bunker and sprint straight to the bunker door.

That creates our opening.

When the event is active, boosted blueprint chances can apply to eligible containers across the map. So instead of gambling on one contested bunker, we get dozens of blueprint rolls from safer locations.

The outer Spaceport route is better if your goal is unlocks, not ego fights.

↖ Best Containers for Weapon Attachment Blueprints

Do not loot everything.

This farm only works if we target the right containers.

Core rule: drawers and blue suitcases first.

If it looks like tech loot, skip it.

↖ Recommended Loadout for the Route

This is a long-map farm. Bring tools that keep you moving and alive.

Do not overpack.

If your bag is full of ammo, seeds, and cheap meds, you will hate yourself when a rare blueprint drops.

↖ Safe Pocket Priority

Blueprints beat money. Always.

↖ Best Spaceport Blueprint Farming Route

The route works because it chains high-value residential containers while avoiding the bunker crowd.

Run it clean. Do not chase every fight.

↖ Step 1: Check Spawn Towers and Early Drawers

If you spawn near a tower, office, or antenna structure, check it first.

Look for:

• Desk drawers
• Small guard rooms
• Closed doors
• Blue suitcases

Closed doors are a good sign. They usually mean the area is untouched.

If the room is stripped, leave immediately. No ego looting.

↖ Step 2: Loot Flight Control

Flight Control is strong because it has multiple drawers and usually gets ignored during Hidden Bunker chaos.

Prioritize:

1. Desk drawers

2. Blue suitcases

3. Lockers if nearby

4. Medical drawers only if convenient

Skip:

• Servers
• Computers
• Random tech containers

ARC can spawn here. If you see Shredders or Fireballs, clear only what blocks your route. This is a blueprint farm, not a cleanup contract.

↖ Step 3: Clear the Departure Building

Departure is one of the best areas on the route.

Start high, then work down.

Why?

• Better angles.
• Safer movement.
• Easier audio reads.
• Faster escape if players enter below.

Use a Snap Hook if you have one. Getting to the upper floor fast often lets us loot before anyone checks the building.

↖ Departure Loot Checklist

Blue suitcases are the big one. Players miss them constantly.

In tested runs, Departure has produced Vertical Grip III, Shotgun Choke III, and other high-tier attachment blueprints from simple residential containers.

↖ Step 4: Hit the Departure Breach Room

The lower breach room is underrated.

Many players skip it because they are racing to the bunker. That is their mistake.

Check:

• Lockers
• Drawers
• Hidden corner cases
• High-value trinkets

If your bag is filling up, start cutting junk.

Drop in this order:

1. Seeds

2. Cheap materials

3. Extra ammo stacks

4. Duplicate trinkets

5. Low-value meds

Keep enough heals to survive. Not enough to open a hospital.

↖ Step 5: Check the Guard Tower

After Departure, rotate to the nearby guard tower.

It is quick, safe, and can pay out.

Look for:

• Closed door
• Desk drawers
• Turret light
• Untouched loot

Guard towers are not worth dying for. If someone is holding the angle, skip it.

But if it is untouched, check it. These drawers can drop blueprints, including utility items like Smoke Grenade Blueprint.

↖ Step 6: Loot the Arrival Building

Arrival has strong blueprint density but more traffic.

Move slower here.

Start with the breach room if accessible. Then clear desks and suitcases floor by floor.

↖ Arrival Priority List

Watch drawer size.

If a drawer shows 4+ item slots, pay attention. In practice, those rolls often line up with better loot, including blueprints. It is not guaranteed, but it is a real pattern worth respecting.

Arrival can produce attachment blueprints like Lightweight Stock, Extended Barrel, and other high-value upgrades.

↖ Step 7: Farm the West Security Offices

This is the most important stop.

The small west-side security offices in Arrival are fast, dense, and extremely worth checking.

Do this:

• Breach from the inside when possible.
• Stand off-angle while opening.
• Ignore servers.
• Check every drawer.
• Leave quickly.

These offices can produce serious drops.

The key discovery: Volcano Blueprint can spawn outside the Hidden Bunker.

That one fact changes the farm. You do not need to win the bunker fight to chase Volcano.

↖ Extraction Strategy: Do Not Die With the Bag

The run is worthless if you die at extract.

After the bunker opens, expect players to rotate toward obvious exits. The closest elevator is not always the safest.

Use smokes for players.

Use lures for ARC.

Use adrenaline for open ground.

Simple. Effective. Boring in the best way.

↖ Common Mistakes That Ruin This Farm

Avoid these and your blueprint rate improves fast.

The best farmers are not the loudest. They are the most selective.

↖ FAQ

↖ Can weapon attachment blueprints spawn outside the Hidden Bunker?

Yes. During the Hidden Bunker event, eligible residential-style containers across Spaceport can drop weapon attachment blueprints. Focus on drawers, blue suitcases, breach rooms, and security offices.

↖ What is the best container for blueprint farming?

Desk drawers and blue suitcases are the best targets. Security office drawers are especially valuable and should never be skipped.

↖ Can the Volcano Blueprint drop outside the bunker?

Yes. The Volcano Blueprint can spawn outside the bunker in eligible containers, including security office drawers and tower drawers during the event.

↖ Should we still enter the Hidden Bunker?

Only if you want the fight. For efficient blueprint farming, the outer Spaceport route is safer and gives more total rolls across the raid.

↖ What should I bring for this farm?

Bring 3–6 adrenaline shots, 2–4 smokes, 2–4 lures, a reliable ARC-killing weapon, moderate ammo, and as much safe pocket space as possible.

↖ Summary

The strongest Arc Raiders Hidden Bunker blueprint farm is not a bunker rush. It is a Spaceport-wide container route.

Farm these first:

• Desk drawers
• Blue suitcases
• Security office drawers
• Breach-room drawers
• Guard tower drawers

Skip tech loot. Avoid pointless fights. Pocket unknown blueprints immediately.

The big win: Volcano Blueprint and high-tier weapon attachments can drop outside the bunker. Once you know that, Hidden Bunker becomes less of a coin flip and more of a controlled farming route.