Firebase Z
Firebase Z opens in a snowbound Village and expands into a Requiem military installation reached by a rooftop teleporter. Three Aether Reactors replace the usual power switch, Assault Rounds hammer the base, and the Maxis Potential quest revolves around the treacherous Dr. Peck, Mimic memory extraction and three Aetherium containers. It all ends in a rooftop showdown with the Orda to pull Samantha Maxis back from the Dark Aether.
Quick answers
How do you complete the Firebase Z Easter egg?
- Open the Village, climb to the rooftop and teleport to the Firebase.
- Activate all three Aether Reactors (Mission Control, Data Center, Military Command) to restore power.
- Pack-a-Punch sits in the Village Atrium beside Ravenov, back through the teleporter.
- Power is a defense event per reactor: keep kills inside the marked collection circles.
- Build the RAI K-84 wonder weapon; you need its Alt-Fire for the moving container.
- Mimics disguise as fake-loot piles; Manglers drop the uncharged power cell.
- Speak to Ravenov, meet Peck, then gas him with a home-mixed truth serum.
- Extract Mimic memories with an Essence Trap and process three correct names.
What is the Wonder Weapon on Firebase Z?
Who is the boss on Firebase Z?
How long does the Firebase Z Easter egg take?
Can you do the Firebase Z Easter egg solo?
Is there a song Easter egg on Firebase Z?
What are the main areas on Firebase Z?
How many side Easter eggs are on Firebase Z?
Are there solvers for the Firebase Z puzzles?
When was Firebase Z released?
Map & Key areas
The map layout first, then the areas worth knowing by name. Map imagery © Activision, self-hosted.
Village
Spawn hub with Pack-a-Punch, Ravenov, the dartboard and the bunny room; the rooftop teleporter links to the Firebase.
Mission Control
Dr. Peck's window, the OPC (boss trigger), Planning Office satellite terminal and the first Aether Reactor.
Data Center
Memory Transference Station and second reactor; where Essence Traps and Mimic memories are processed.
Military Command
Third reactor and the Control Room Mimic zone that restores full power.
Weapon Lab
RAI K-84 blueprint, retina scanner, power-cell charger, dartboard computer and the build bench.
Defense lanes
Scorched, Rocky and Jungle Defense zones for the eye corpse, the shovel, Sergei's head and Assault Round holdouts.
Steps at a glance
- Open the Village, climb to the rooftop and teleport to the Firebase.
- Activate all three Aether Reactors (Mission Control, Data Center, Military Command) to restore power.
- Pack-a-Punch sits in the Village Atrium beside Ravenov, back through the teleporter.
- Power is a defense event per reactor: keep kills inside the marked collection circles.
- Build the RAI K-84 wonder weapon; you need its Alt-Fire for the moving container.
- Mimics disguise as fake-loot piles; Manglers drop the uncharged power cell.
- Speak to Ravenov, meet Peck, then gas him with a home-mixed truth serum.
- Extract Mimic memories with an Essence Trap and process three correct names.
- Recover three Aetherium containers and slot one into each reactor.
- Align the satellite dish to the Requiem (yellow question-mark) target, never a flag.
- Entering the OPC transitions straight into the Orda boss — finish all prep first.
- Orda's glowing mouth is the critical target; clear specials, then resume damage.
Before you start
What to have in hand before step 1 — from the loadout notes, from the walkthrough itself, and from the map's own quest documentation where the gate is never stated in a step.
- Bring a single-shot, non-explosive gun for the dartboard sequence — splash damage can clip a neighbouring wedge and misfire the code. — step 2
- Take an Essence Trap from the Data Center's Memory Transference Station before you can capture a Mimic memory — it fills your tactical slot. — step 4
- Reactor charging needs kills defended on top of the Collection Units, not just farmed nearby — kiting the horde away starves the charge and can get a unit destroyed, resetting progress. — step 1
- Mimic memory capture is one extraction per round — a killed Mimic or a failed capture means ending the round to retry. — step 5
- Entering the OPC at Mission Control transitions directly into the boss — finish all prep (armour, ammo, self-revive, perks, support) first. — step 7
- At Jungle Defense, stay inside the yellow dome — standing outside it deals steady damage, so in co-op everyone must be in. — step 6
Set aside 35–55 min · 1–4 (solo-capable)
Where your run will differ
Gathered here so you meet them before they cost you a run rather than after — quoted word for word from the guide below, or researched from the map's own quest documentation.
What changes with your player count. The rest of the guide is the same either way.
- “At Jungle Defense, dig the middle lane and stay inside the yellow dome — standing outside it deals steady damage…” step 6
Full walkthrough
The quest in the order this guide runs it — tap any step to jump to it, and it fills in as you tick steps off.
Restore power and unlock Pack-a-Punch
Open the Village, climb to the rooftop teleporter and reach the Firebase. Activate the Aether Reactors at Mission Control, Data Center and Military Command by paying 500 to start each event, then charging it with kills.
Defend the Collection Units, don't just farm kills. Each reactor is flanked by units that soak souls; they glow red when zombies attack them. Kiting the horde away from the room starves the charge and lets the units get destroyed, resetting your progress — stay in the room and thin the horde on top of the units. When it fills, the reactor ignites purple and clears nearby zombies. Then return through the teleporter to Pack-a-Punch in the Village Atrium beside Ravenov.
- All three reactors online
- Pack-a-Punch available in the Atrium
Build the RAI K-84
Take the blueprint from the Weapon Lab wall. Recover the eye from the corpse in Scorched Defense and place it in the retina scanner to open a drawer holding a locker key. Open marked Barracks lockers until a Mimic drops the Barrel Assembly, kill a Mangler for the Uncharged Power Cell and charge it in the Weapon Lab (wait one full round). Read the dartboard code off the computer, shoot the three numbers then the bullseye in the Village to release the Aetherium Converter, then craft the RAI K-84 at the bench.
Struggling to read the wedges? The Weapon Lab computer flashes a wheel with a segment that stops in three positions; those positions map onto the standard dartboard in the Village. Note where each flash lands, find that number below, and shoot it — then the bullseye. Dartboard reference & shot planner.
- Blueprint taken
- Locker key from retina scan
- Barrel Assembly (Mimic drop)
- Charged Power Cell
- Aetherium Converter (dartboard)
- RAI K-84 crafted
Firebase Z Dartboard — shot planner
Weapon Lab computer → Village dartboardThe Weapon Lab computer flashes a wheel whose lit segment stops in three positions; those positions map onto the standard dartboard in the Village. Note where each flash lands, then click those wedges here in the same order — it marks your firing sequence (three wedges, then the bullseye last). Fire with a single-shot, non-explosive gun so splash never clips a neighbouring wedge. The positions are randomised every match, so read your own screen — this is a layout reference, not a fixed answer.
Meet Peck and collect the compounds
Exhaust Ravenov's dialogue, then speak to Dr. Peck through the Mission Control window and return to Ravenov for the ID Badge. Use the badge on three lockers to take the compounds at Equipment Storage, Engineering and the Colonel's Office.
- Ravenov dialogue exhausted
- ID Badge collected
- Compound — Equipment Storage
- Compound — Engineering
- Compound — Colonel's Office
Mix the serum and gas Peck
Place the three compounds in the mixer at the Field Hospital, kill the Hellhounds and collect the Agent Delivery System. Install it on the air-conditioning unit outside the OPC, return to Peck and wait through the full dialogue to earn the truth-serum interrogation. Then take an Essence Trap from the Data Center's Memory Transference Station (it fills your tactical slot).
- Serum mixed, Hellhounds cleared
- Agent Delivery System installed on A/C
- Peck gassed — dialogue complete
- Essence Trap collected
Capture three Mimic memories
Each round one quest Mimic hides in a fake-loot cluster (Motor Pool, the Military Command Control Room, or Peck's Quarters). Damage it to near death, throw the Essence Trap at its feet, activate it and pick it up, then deposit at the Memory station before the timer expires. Process the three correct names — Brahms, Sokolov and Zhabin — to unlock the floppy disk. Wrong memories are recoverable. A purple glow on the Mimic confirms the capture; extraction is limited to one per round, so end the round after each success — and a killed Mimic or a failed capture also means ending the round to retry (with subtitles on, a correct memory speaks as Sokolov, Brahms or Zhabin; any other name is a wrong Mimic).
Don't kill the Mimic — trap it. The number-one failure is overshooting: bring it to roughly 15–20% health, then throw the trap. You can't tell which Mimic holds a correct memory until you deposit it — the station only names it after. If Weaver reads Brahms/Sokolov/Zhabin (watch the subtitles) it counts; any other voice is a wrong memory and you retry next round. Deposit quickly — the captured trap is on a timer.
- Brahms processed
- Sokolov processed
- Zhabin processed
- Floppy disk available
Open the OPC and gather the containers
Insert the floppy disk in the Planning Office computer and inspect the unstable OPC. Collect the Aethermeter from the locker left of Peck (Ravenov supplies the code) and the shovel from Scorched Defense. Dig the Open Lot container (by the Engineering window): identical decoys spawn around it, so pick the one whose smoke runs clear/white inside — every decoy swirls black (smoke comparison). At Jungle Defense, dig the middle lane and stay inside the yellow dome — standing outside it deals steady damage, so in co-op everyone must be in. For the moving container (Barracks / Field Hospital), pin it from range with the RAI K-84 Alt-Fire (the lobbed black-hole shot, Up on the d-pad) before it relocates, then run over and grab it. Slot one Aetherium container into each reactor.
- Floppy disk inserted, OPC opened
- Aethermeter collected
- Shovel collected
- Open Lot canister (no black smoke)
- Jungle Defense canister
- Moving container frozen with RAI Alt-Fire
- One container in each reactor
Aetherium canister — smoke check
Open Lot dig (RAI K-84 build)When you dig the Open Lot canister, identical-looking decoys spawn all around it. Only one is real — judge by the smoke swirling inside: the correct canister runs clear / WHITE, every decoy runs BLACK. Grab the white one; interacting with a black-smoke decoy fails the pickup.
Align the satellite, then kill Orda
At the satellite terminal move the cursor onto the target marked by a yellow question mark (the Requiem satellite) — never the US or USSR flag (which satellite to pick). Finish all prep — armour, ammo, self-revive, perks, support — because entering the OPC at Mission Control transitions directly into the boss. Focus Orda's open, glowing mouth from range (it opens when it attacks), and never stand under its hand/hammer slam — that lane is a one-hit down. Dodge the plague cloud, clear special waves, then finish it to rescue Samantha Maxis from the Dark Aether.
- Yellow question-mark satellite selected
- Full prep complete before the OPC
- Orda defeated
- Ending sequence complete
Satellite target — pick the “?”
Planning Office computer (before Orda)On the satellite screen the decoy satellites carry a US or USSR flag — never select those. The Requiem satellite you want is marked with a yellow “?”. Move the cursor onto that one and confirm to fire the beam and start the Orda fight.
Side Easter Eggs & extras
Everything beyond the main quest. Tap any entry to open the full how-and-where breakdown.
“Lost” (Kevin Sherwood / Julie Nathanson)
Collect three golden cassette tapes: Equipment Storage shelf, Motor Pool Office (green cabinet), and Scientist Quarters bookcase (needs all reactors on).
Sergei's head
Carry Sergei's head from a defense zone (Scorched / Rocky / Jungle) to the Field Hospital plate, trap a low-health zombie beside it, then open the Colonel's Office safe for a random perk and a cipher.
Bunny room
After Pack-a-Punch, stare at the stuffed bunny above Der Wunderfizz to teleport, shoot it three times in the dark sequence, then choose a chest.
Upgraded Cymbal Monkeys
Get roughly 50 Cymbal Monkey kills near reactor areas; upgraded monkeys glow red and force zombies to dance.
Free jump-pad travel
Activate all six jump pads to remove their later use cost.
Discordian Disruptor
Pack-a-Punch the RAI K-84: 50-round mag / 300 reserve, red rounds, and the Alt-Fire becomes the Discordian Harmonizer.
Exfil
Call and survive the exfil sequence, like Die Maschine, for bonus Aetherium Crystals.
Assault Rounds
Periodic Assault Rounds attack the Firebase — defend the marked lane; later ones can throw an Orda at you, so keep long-range damage and an artillery streak ready.
Interactive solvers
Every solver for Firebase Z, in the order you meet them. Each also appears inside its step in the walkthrough above — use whichever is handier. Browse every Zombies solver →
Firebase Z Dartboard — shot planner
Weapon Lab computer → Village dartboardThe Weapon Lab computer flashes a wheel whose lit segment stops in three positions; those positions map onto the standard dartboard in the Village. Note where each flash lands, then click those wedges here in the same order — it marks your firing sequence (three wedges, then the bullseye last). Fire with a single-shot, non-explosive gun so splash never clips a neighbouring wedge. The positions are randomised every match, so read your own screen — this is a layout reference, not a fixed answer.
Aetherium canister — smoke check
Open Lot dig (RAI K-84 build)When you dig the Open Lot canister, identical-looking decoys spawn all around it. Only one is real — judge by the smoke swirling inside: the correct canister runs clear / WHITE, every decoy runs BLACK. Grab the white one; interacting with a black-smoke decoy fails the pickup.
Satellite target — pick the “?”
Planning Office computer (before Orda)On the satellite screen the decoy satellites carry a US or USSR flag — never select those. The Requiem satellite you want is marked with a yellow “?”. Move the cursor onto that one and confirm to fire the beam and start the Orda fight.
Recommended loadouts
Three strong picks for this map — the map's Wonder Weapon plus reliable box/wall options. These are pre-augment-era games, so the setup is the gun plus Pack-a-Punch and perk synergy.
RAI K-84 (Wonder Weapon)
Aetherium AR with a mine-lobbing Alt-FireBuild it in the Weapon Lab or pull it from the box / Trial — its Alt-Fire slowing field is mandatory for freezing the moving Aetherium container.
Discordian Disruptor (PaP’d RAI K-84)
Red-round upgrade, 50-mag / 300 reservePack-a-Punch the crafted RAI K-84; Mimic and Mangler ammo drops keep it fed through the Orda fight.
Gallo SA12 / Hauer 77 (early wall-buy)
Reliable close-range clear-out for the reactor holdoutsWall-buy in the Village / Firebase and Pack-a-Punch it — a low-spread shotgun doubles as a safe Mimic-catcher without over-killing the target.
Field Upgrade reference (Cold War)
Black Ops Cold War introduced Field Upgrades — the tactical ability you charge with kills. Cold War upgraded them through Aetherium Crystal skill tiers (I–V), not the Major/Minor augment system that arrived in Black Ops 6.
Energy Mine
A proximity energy explosion.
Frost Blast
A frost AoE that slows enemies.
Healing Aura
Instant heal beams (also revives teammates in BO6/BO7).
Ring of Fire
A damage-boost ring that also burns enemies (15s).
Aether Shroud
Phase out of enemy detection.
Tesla Storm
Lightning links players, stunning and damaging enemies.
Frenzied Guard
Repair armour and taunt enemies; kills repair your armour.
Toxic Growth
Thorn vines that slow and damage.
Dark Ops & mastery cards (Cold War)
Black Ops Cold War introduced the Zombies ‘Dark Ops’ card system — hidden challenges earnable on any map (plus Dead Ops Arcade). Filter by category.
Another Round?
Dark OpsReach Round 100.
Reaper of the Undead
Dark OpsKill 1,000,000 zombies.
Invincible
Dark OpsReach Round 30 without going down.
Social Distancing
Dark OpsReach Round 20 without taking a hit.
Good Enough
Dark OpsReach Round 20 with your starting loadout.
Armed to the Teeth
Dark OpsHold 2 fully-upgraded weapons with ammo mods and 6 active perks.
Box Addict
Dark OpsBuy every Mystery Box weapon in one game.
Harbinger of Doom
Dark OpsKill 50 enemies with a single Support.
The Anvil
Dark OpsExfil a game using only melee attacks.
Evil Unleashed
Dark OpsComplete any main Easter-egg quest.
King of Silverbacks
Dead Ops ArcadeReach a cumulative Dead Ops Arcade score of 999,999,999.
Pristine Pelt
Dead Ops ArcadeBeat Mamaback (the DOA final round) without dying.
Dark Ops Master
MasteryComplete the Dark Ops set.
Intel
91 pieces — Requiem 28, Omega 25, Maxis 17, Dark Aether 21 — as 22 Audio Logs, 30 Documents, 29 Radio Transmissions and 10 Artifacts (76 at launch, 15 in Season Two). Only the audio logs and three radios are in the map; documents drop from Manglers and Mimics, artifacts come from the main quest and the RAI K-84 build, and all Dark Aether intel is from the Trials computer. Story/lore only, no gameplay reward.
Audio Logs 22
Ravenov (Requiem)
Atrium village area — on the bench just above the Pack-a-Punch.
Description: Maxis phones Weaver to let him know she has a contact inside Omega Group willing to provide valuable intel.
Requiem — Data Center
Lower level, on a table left of the large hole in the wall.
Requiem — Military Command
Under a table in the south-east corner.
Omega — Planning Offices
Upper floor, underneath the middle table.
Omega — Engineering
Up in the ceiling pipes — shoot it down; it lands by the green-screen computer.
Omega — Mission Control
Upper floor, on a table just left of the reactor defence point.
Omega — Scorched Defense
On the roof of the left bunker, on top of a box.
Omega — Field Hospital
On the drawers in the corner by the lab/protective suits.
Omega — Weapon Lab
On the shelves across from the RAI K-84 build bench.
Omega — Colonel's Office
Under the desk, right side.
Omega — OPC (Omega Portal Chamber)
On the ground on the left; the OPC only opens through the main quest.
Maxis — Equipment Storage
Across from the Pack-a-Punch building, bottom floor, on a shelf.
Maxis — Scientist Quarters
On the beam above the Arsenal — shoot it and it drops into the Briefing Room.
Maxis — Barracks locker
In one of the Barracks lockers, opened with the key you get while building the RAI K-84.
Dark Aether — 5 Lost Souls logs 5
Earned from the Trials computer, not found in the map (max 3 Trial-reward intel per game).
Lost Souls: Fedorov
I was a different man when I enlisted.
Lost Souls: Koslov
I know something is out there watching me.
Lost Souls: Tobias
Truth be told, I do not hate this work.
Lost Souls: Olga
Am I... falling apart?
Lost Souls: Federov #2 (Season 2)
This place, it plays tricks on you.
Season Two audio logs — 4
Focal Point (Requiem), Half of the Reason (Omega), More Bad News (Maxis) and Lost Souls: Federov #2 (Dark Aether). Exact map spots for the S2 ones aren't well documented.
Requiem, Omega and Maxis audio logs — the names 17
The located entries above are listed by room; these are the seventeen names the collection screen uses, with what each one says, so you can tick off which you still need.
Requiem · Ravenov
Maxis phones Weaver to let him know she has a contact inside Omega Group willing to provide valuable intel.
Requiem · They Took Her
Captain Ravenov — Maxis' contact in Omega — reveals to Weaver that Maxis has been captured.
Requiem · Meeting Of Minds
The Requiem senior staff discuss sending a rescue team to Outpost 25.
Requiem · Focal Point (Season 2)
Requiem Berlin Station Chief Meyer warns Weaver about a developing situation in the divided German capital.
Omega Group · Dimensional Fertility
Having received approval for the construction of Outpost 25, Peck discusses the opportunities the new site will offer Omega Group.
Omega Group · Let It Ride
Omega Group scientists Peck and Kuhlklay initiate Dimensional Portal Test number 32.
Omega Group · Aethernauts
While noting his first successful teleporter test, Peck discusses the role played by his Dark Aether miners and the steps taken to deal with the effects of their labours.
Omega Group · The Anatomy Lesson
Peck and Kuhlklay perform an autopsy on a Dark Aether creature that is more than meets the eye.
Omega Group · Kuhlklay's Payback
Kuhlklay vents his true feelings about Peck... and makes a fateful decision about his weapon project.
Omega Group · Gorev
Gorev pays a visit with new orders from the Kremlin.
Omega Group · To Dust You Will Return
Peck has Maxis brought to his Omega Portal Chamber.
Omega Group · Outpost 25 Has Fallen
Peck sends an emergency message to Omega Group headquarters informing them Outpost 25 is now an Outbreak Zone.
Omega Group · Half Of The Reason (Season 2)
Kuhlklay meets with Valentina for a secret transaction.
Maxis · Not Who We Are
Maxis questions the motivations of her Omega Group contact, Ravenov.
Maxis · Workers Of The Worlds
Maxis records a personal log, airing her deep concerns about Omega Group's plans.
Maxis · Worse Than Baton Rogue
Peck interrogates Maxis.
Maxis · More Bad News (Season 2)
Ravenov warns of expanded Omega Group activities in Russia's Ural Mountains.
Radio Transmissions 29
Requiem radio — 13 transmissions 13
Data Center upper floor, on the table across from an Aether reactor (near Speed Cola). One per game.
Omega's Advantage
Weaver tells the team that Omega is pulling ahead in the Aetherium arms race.
This Is Personal
Weaver stresses to the team that they need to rescue Maxis.
Peck
Weaver has a few choice words about the despicable Doctor Peck.
Between Us
Carver reminds the team to secure Omega's weapon research.
W.A.N.D.
Carver discusses one of his contributions to the war effort.
The Stick
The team's mission to Vietnam stirs up old memories in Carver.
Blacksmiths and Architects
Strauss sees the potential of Omega's work... and he is certain he can improve upon it.
Not Unlike Oxygen
Strauss muses on Aetherium's properties and its importance to the Dark Aether's denizens.
A Storied Career
Strauss recounts his harrowing path from WWII German atomic scientist to head of Requiem's Energy Research Division.
The Thick Of It
Grey ponders the unthinkable: what if Omega has learned to control dimensional portals?
Transformative Properties
Grey wonders why Aetherium affects people differently, and why the infected take on different forms.
Genetic Secrets
Grey discusses the possible benefits to be gleaned from the Dark Aether.
Nose to Nose (Season 2)
Berlin Station Chief Meyer is increasingly nervous about a certain visitor to his city.
Omega radio — 5 transmissions 5
Peck's Quarters, upper level of the spawn Village (windowsill in the 2nd-floor room by Pack-a-Punch). One per game.
Good Little Lemmings
Peck sends a message to Omega Group HQ informing them Requiem have arrived — but that may not be a bad thing.
Not Built To Last
Valentina responds to Peck's distress messages, with more than a little schadenfreude.
Do Try To Stay Alive
A second message from Valentina gives Peck a glimmer of hope.
Gorev's Disappointment
Gorev does not mince words when explaining to Peck his current predicament.
The Colonel (Season 2)
Omega Group's leader gives Peck one final chance to redeem himself.
Maxis radio — 9 transmissions 9
Rocky Defense — on a table in the middle of the area. One per game.
Code In
The wiki prints no description for this one.
Relentless
I am here, and I have been waiting...
Monsters are Real
I hide in shadows.
The Perpetual Night
I want to get it out.
The Light Within
It's always dark here.
Blood On My Hands
I have a knife. I do not remember where it came from.
A Bad Dream
I am lost. Please find me.
A Tangled Web (Season 2)
I have written these names, over and over...
I Made A Promise (Season 2)
I wish I could have kept you safe.
Dark Aether — 2 transmissions 2
From the Trials computer, not a physical radio.
Without Orders
I fear I am losing.
Crooked House (Season 2)
There was a woman that I met...
Documents 30
Elite-drop documents 17
Most of the 30 drop randomly from Manglers and Mimics (Omega 6, Maxis 4, plus the Requiem set and the Season Two additions). Roughly one or two a game.
Requiem · Outbreak Zones Timeline
CIA document detailing the appearances of dimensional breaches since Omega Group restarted the cyclotron at Projekt Endstation.
Requiem · Requiem Formation Memo
Director of Central Intelligence Casey informs President Reagan about the newly created CIA Office of Requiem.
Requiem · Requiem Staffing Announcement
CIA document announcing the appointments of Weaver, Carver, Grey and Strauss to the Office of Requiem senior staff.
Requiem · C Cipher
A recovered cipher — the wiki prints no description for this one.
Requiem · RE: Funding Allocation 1 (Season 2)
Carver sends Weaver a memo regarding increased funding to Energy Research and Unnatural Sciences.
Requiem · RE: Funding Allocation 2 (Season 2)
Strauss sends a memo to Grey regarding their increased funding.
Requiem · Berlin COMINT (Season 2)
A memo from Berlin Station Chief Meyer containing intercepted communications from Omega Group's Doctor Valentina.
Omega Group · Authorization to Conscript
The Committee for State Security grants Outpost 25 permission to conscript Aetherium miners, including political prisoners and enemies of the state.
Omega Group · Omega Teleporter Blueprint
Blueprint of the Aetherium-powered teleportation device developed at Outpost 25. Includes notes on early malfunctions.
Omega Group · Specimen K7-1924
Omega Group medical document detailing the autopsy of a shape-shifting creature.
Omega Group · Aetherium Production Report
Peck expounds on the limitless potential for Aetherium-based energy production and the ability to refine Aetherium to increase its potency.
Omega Group · G Cipher
Recovered Omega Group cipher. Decryption is required.
Omega Group · P Cipher
Recovered Omega Group cipher. Decryption is required.
Maxis · Omega Portal Blueprint
A schematic of Peck's masterpiece: the portal to the Dark Aether dimension. Annotated by Ravenov.
Maxis · Omega Propaganda Poster
A poster calling for volunteers to brave the new frontier of the Dark Aether dimension and secure the power of Aetherium for Mother Russia.
Maxis · Aetherium Effects Report
Report from Kuhlklay on the side effects suffered by some miners from exposure to Aetherium.
Maxis · Aetherium Reactor Blueprint
A schematic of Outpost 25's Aether Reactor. Annotated by Ravenov.
Colonel's Office safe (Requiem)
One Requiem document sits in the Colonel's Office safe — get the code by taking a captured zombie to the Field Hospital table, then returning Sergei's head (found in Scorched, Jungle or Rocky Defense) to it.
Dark Aether documents — 13 13
The Stranger's day-numbered journal entries, all from the Trials computer.
My Friend!
The Stranger re-establishes contact.
Day 291
Another entry from the Stranger's journal recounts their completion of a stronghold in the Dark Aether.
Day 2,944
The Stranger describes a brief, ghostly visit to a city in Earth's home dimension.
Day 3,789
The Stranger has tamed a hellhound. They are no longer alone.
Day 4,010
The Stranger's bond with their hound Cinder grows deeper.
Day 6,157
The Stranger attempts to repair a beverage machine.
Day 6,289
The Stranger finds a new device to repair.
Day 6,142
The Stranger met another lost soul who gathers items for trade.
Day 6,416
The Stranger has a confrontation with the Trader.
Day 6,418
The Stranger faces off with the Trader and his gang.
Day 6,421 (Season 2)
The Stranger relates how they survived their encounter with the Trader and his gang.
Day 6,457 (Season 2)
The Stranger returns to their transmitter project, hoping to warn the world about the Dark Aether.
Much More To Tell You (Season 2)
The Stranger signs off, promising to return.
Artifacts 10
10 artifacts — main quest & RAI K-84 10
None lie in the map — all come from the main Easter egg and building the RAI K-84: e.g. Kuhlklay's Eye and the Weapon Trial Folder in Scorched Defense, the RAI K-84 Blueprint in the Weapon Lab, Ravenov's ID Badge, the Essence Trap, and the Omega Canister from the three Aether crystals.
Requiem · RAI K-84 Blueprint
The weapon blueprint for Kuhlklay's prized invention. Its design was partially inspired by recovered schematics for the Generator Khaosa Zavoyski-45, a proposed weapon from WWII that never made it beyond concept. It is unclear why Peck was so uninterested in Kuhlklay's prototype, but it will be invaluable to Requiem's weapons research.
Requiem · Weapon Trial Folder
Kuhlklay's weapon trial folder, detailing testing and development of his experimental prototype. Helpful for Requiem's own weapons research.
Requiem · Kuhlklay's Diary
Recovered from a storage locker, the journal offers deeper insights into Omega's research — and Kuhlklay's disdain for his immediate supervisor.
Requiem · RAI K-84 Prototype
The Reactorniy Avtomat-Izluchatel Kuhlklay-84 (RAI K-84) was developed by Dr. Dimitri Kuhlklay and first manufactured in 1984. The experimental prototype fires fully automatic energy bolts, but also comes equipped with a ballistic Vortex grenade launcher. When detonated, the grenade creates a temporal distortion field, slowing time for anyone caught inside. Acquired by Requiem agents for analysis.
Omega Group · Kuhlklay's Eye
Biological remains of Dimitri Kuhlklay, Omega Group scientist.
Omega Group · Ravenov ID Badge
Ravenov's Omega ID badge. Grants access to restricted areas (as well as lockers and containers).
Omega Group · Agent Delivery System
The Agent Delivery System was designed for mass dispersal of Peck's truth serum. As conscripts returned from the Dark Aether, their reports were often inconsistent or filled with impossibilities. In an effort to get accurate statements, Peck developed a special truth serum. While reports have noted that its hallucinogenic properties put users in an altered state, it has proven highly effective.
Omega Group · Essence Trap
The Essence Trap and the Memory Transference Station were developed to recover the memories from individuals who had succumbed to their Aetherium infections. When deployed near an infected creature, the trap siphons any remaining memories from its former human self.
Omega Group · Aethermeter
Developed by Omega Group, the Aethermeter is a scanner used by soldiers and conscripts sent into the Dark Aether to mine Aetherium. The Aethermeter was critical in locating fresh Aetherium crystals ready for harvesting.
Dark Aether · Omega Canister
Considering the radioactive nature of Aetherium — and the undesirable effects on those exposed to it — Omega Group developed special canisters to ensure the crystals could be handled safely.
When it isn't working
The stalls that actually cost people runs on this map, and what to do about each.
Reactor charge stalls or resets
Killed the Mimic and got nothing
Captured a memory but it didn't count
Can't tell which Open Lot canister is real
Satellite step won't fire the beam
Died instantly to Orda
Common Firebase Z questions
Direct answers to the specific things players look up mid-game — part locations, puzzle steps and more.
What is the dartboard code?
How do I get to the Firebase?
How do I build the RAI K-84?
How do I get a free perk on Firebase Z?
What is the bunny room?
How do I upgrade the Cymbal Monkeys?
Can I stop paying for the jump pads?
What are Assault Rounds?
Where are the three cassette tapes?
Visual guides & sources
Screenshots and exact part locations live in these — open one on a second screen.
Map discussion
A shared community board for Firebase Z — posts are public, saved on the server and visible to everyone across devices. Handy for strategies, spawn variations you've noticed, or steps to double-check. Please keep it civil and on-topic.