The Firebase Z main quest is completely SOLO-capable and can also be completed in co-op.

1. ⚡ Turn on the power

Start in the Village and talk to Ravenov.

Open the route upstairs and use the teleporter to reach Firebase Z.

There are three Aether Reactors:

⚡ Mission Control
⚡ Data Center
⚡ Military Command

Each costs 500 Essence to activate.

Start a reactor and stay near its collection units while eliminating zombies. Protect the collectors until the reactor finishes charging.

Do this for all three.

⚡ POWER RESTORED.

Return through the teleporter to the Village and you’ll have access to Pack-a-Punch beside Ravenov.

2. 👨‍🔬 Talk to Dr. Peck

Head back to Mission Control.

Approach the window and speak with:

DR. PECK

He was supposed to help rescue Samantha.

He doesn’t.

What a surprise. 😂

Listen to his dialogue, then return to Ravenov.

Ravenov gives you:

🔑 HIS ID BADGE.

3. 🧪 Collect THREE compounds

The ID badge opens three lockers.

You need:

🧪 Compound S16 — Equipment Storage

🧪 Compound P65 — Engineering

🧪 Compound 36 — Colonel’s Office

Collect all three.

4. 🧪 Make the Truth Serum

Take the compounds to the Field Hospital.

Interact with the Chemical Mixer.

The machine begins mixing the compounds while Hellhounds attack.

Survive until it’s finished.

Pick up the:

🧪 AGENT DELIVERY SYSTEM

Take it to the air-conditioning unit outside Peck’s office and install it.

The gas enters his room.

Peck starts hallucinating and dancing.

😂 Our master plan to save Samantha: drug the evil scientist until he starts giving us information.

5. 🧠 Get the Essence Traps

After Peck finishes talking, head to the Data Center.

Interact with the Memory Transference Station.

You’ll receive:

🪤 ESSENCE TRAPS

These work a little like Poké Balls for Mimics.

Except the Pokémon wants to eat you.

6. 👹 Capture THREE correct Mimics

This is one of Firebase Z’s most notorious steps.

Special Mimics appear disguised among piles of fake equipment.

You need to capture Mimics containing the memories of:

🧠 Sokolov

🧠 Brahms

🧠 Zhabin

Damage the Mimic until it has very low health.

Throw an Essence Trap near it.

Get the Mimic close to the trap and activate it.

If successful:

👹 MIMIC CAPTURED.

Take the trap back to the Memory Transference Station.

Insert it.

Listen to the recording.

If it’s one of the three names above:

✅ CORRECT MIMIC.

If not:

❌ WRONG MIMIC.

Grab another trap and continue.

You need all three correct memories.

7. 💾 Get the floppy disk

Once you’ve obtained all three correct memories, the Memory Transference Station provides the:

💾 FLOPPY DISK

Take it to the Planning Offices.

Insert it into the computer.

This opens the OPC — Omega Portal Chamber.

Go inside.

You’ll discover the portal isn’t functioning correctly.

Back to Peck we go.

8. ⛏️ Get the Aethermeter and shovel

After the required dialogue, obtain the:

📟 AETHERMETER

and

⛏️ SHOVEL.

Now you need to dig up:

THREE AETHERIUM CONTAINERS.

Each has its own puzzle.

9. 💎 OPEN LOT CRYSTAL

Dig at the appropriate spot in Open Lot.

Several identical Aetherium containers appear.

But only:

ONE IS REAL.

Watch the crystals carefully.

The fake containers have a distinctive visual effect; identify the genuine container and interact with it.

💎 CONTAINER #1 OBTAINED.

10. 💎 JUNGLE DEFENSE CRYSTAL

Head toward Jungle Defense and dig up the second container.

A protective dome appears around you.

And now…

SURVIVE.

Zombies swarm the area while you’re trapped inside.

Keep fighting until the lockdown finishes.

Then collect:

💎 CONTAINER #2.

11. 💎 BARRACKS CRYSTAL

This one requires the:

🔫 RAI K-84

Dig up the container near the Barracks/Field Hospital.

It immediately starts teleporting away whenever you approach it.

Use the RAI K-84’s alternate-fire effect on the container to temporarily stop it.

Run over and grab it.

💎 CONTAINER #3.

12. ⚡ Charge the THREE reactors

Take your three Aetherium containers to the three reactors:

Mission Control

Data Center

Military Command

Insert one container into each reactor.

After all three are installed, return to the OPC.

The portal finally stabilizes…

And then Peck sabotages everything.

😐 PECK.

13. 🛰️ ALIGN THE SATELLITE

Eventually you’ll be directed to the computer in the Planning Offices.

Interact with it.

You’ll see several yellow satellite markers.

Move the cursor over them.

Some display:

🇺🇸 American flag

Others:

🇷🇺 Soviet flag

But you’re looking for:

❓ THE QUESTION MARK.

That’s the Requiem satellite.

Select it.

The satellite aligns and a massive beam strikes the facility.

🚨 BOSS FIGHT WARNING

You’re basically at the point of no return.

Before interacting with the OPC, get yourself prepared.

Upgrade your equipment, refill armor and ammo, grab your perks, and make sure you’re comfortable with your setup.

When you’re ready…

Head into:

OPC.

14. 🌌 RESCUE SAMANTHA

Interact with the OPC terminal.

The portal activates.

And finally…

👩 SAMANTHA MAXIS RETURNS FROM THE DARK AETHER.

But we’re playing Zombies.

You didn’t seriously think we’d just walk away, did you?

😂

Something enormous arrives.

👹 FINAL BOSS — ORDA

ORDA

The Elder God towers over the Village while zombies and special enemies attack.

Your objective is straightforward:

DAMAGE ORDA.

Its large glowing opening is the primary critical target.

Keep your distance from its heavy close-range attacks, control the zombies surrounding you, and hit the boss whenever you have an opening.

Eventually…

💥 ORDA GOES DOWN.

🎬 MAXIS POTENTIAL — COMPLETE

Samantha has been rescued from the Dark Aether.

The ending reveals that Requiem has successfully recovered her—but there are clearly much bigger things happening behind the scenes.

And there’s one particularly important man pulling strings:

Firebase Z