So you’ve heard the black ops 6 bot lobbies  buzz. You’ve seen the carnage. And now you want it for yourself. The Reaper X9 isn’t just the best weapon in Black Ops 6 Zombies — it’s a beast. But it doesn’t come easy… unless you know exactly how to get it.

This guide breaks down the full process to unlock and upgrade the Reaper X9, from your first steps in the Nightfall Outpost map to wielding this high-tech plasma annihilator in all its glory.

Let’s dive in.

Step 1: Head to Nightfall Outpost

The Reaper X9 is currently only available on the Nightfall Outpost map — the new snowy, research-lab-style setting filled with twisted corridors, electrical storms, and dimensional rifts. Load into this map solo or with a squad. Either way, the steps to get the weapon are the same.

Tip: You must make it to Round 10+ to even begin the unlock process.

Step 2: Activate the Cryo Core Reactor

This is the first major Easter egg step tied to the Reaper X9:

  1. Head to the Cryogenics Wing, located past the Labs near the “Icy Descent” zipline.

  2. Find three power fuses scattered around the facility:

    • One in the Server Room (on a table)

    • One in the Armory (next to a wallbuy)

    • One dropped by a mini-boss called the Phase Ghoul (spawns after Round 12)

  3. Insert the fuses into the Cryo Core Reactor and hold to activate it.

Once activated, the room plunges into darkness, and you’ll be ambushed by an elite zombie wave. Survive, and the Core will “stabilize” — revealing a hidden compartment.

Inside: the Void Shard, your next step.

Step 3: Void Shard Puzzle

Take the Void Shard to the Dimensional Analysis Chamber (near Pack-a-Punch) and place it on the glowing pedestal.

Now you’ll be prompted to complete a multi-step mini-puzzle:

  • Kill 30 zombies within the chamber using elemental ammo (Dead Wire or Napalm Burst preferred).

  • Interact with the shard when it glows red to initiate a short hallucination sequence.

  • After the sequence, defeat the Phantom Warden, a mid-tier boss that phases in and out of existence and uses ranged energy attacks.

Once defeated, it drops the Reaper Core Module.

Step 4: Claiming the Reaper X9

Now that you have the Core Module:

  1. Go to the Weapon Vault in the Eastern Hall (usually locked early game).

  2. Insert the Core Module into the Vault terminal.

  3. The door opens — revealing the Reaper X9, ready for you to pick up.

Important: Only one player per match can equip the Reaper X9 through this Easter egg path. Others must try their luck with the Mystery Box.

Step 5: Upgrading the Reaper X9 (Pack-a-Punch)

To truly unleash this weapon’s potential, head to Pack-a-Punch and upgrade it.

Each tier of Pack-a-Punch makes a significant difference:

  • Tier 1 – Reaper’s Judgement

    • Plasma Overload effect adds minor explosive splash

    • Damage doubled, magazine increased

  • Tier 2 – Reaper’s Vengeance

    • Chain lightning added

    • Energy blasts arc between zombies within a 6m radius

  • Tier 3 – Reaper’s Cataclysm

    • Adds charge shot feature (hold trigger for massive AoE burst)

    • Kills spawn mini-electric novas that damage enemies nearby

Step 6: Apply Ammo Modifications

Although the Reaper X9 deals energy damage, it can still take elemental ammo mods — and they stack beautifully.

Best options:

  • Dead Wire: Stuns entire hordes — especially useful in tight areas.

  • Brain Rot: Turns zombies into temporary allies — great for revives or diversions.

  • Shatter Blast: Overkill in early rounds, but helps against armored mini-bosses.

Avoid Cryo Freeze — the plasma already slows enemies naturally.

Step 7: Field Upgrade & Perk Synergy

To maximize your Reaper X9 experience, here’s the meta loadout:

  • Field Upgrade: Tesla Storm

    • Electrifies zombies and syncs visually with the Reaper’s chain lightning.

  • Essential Perks:

    • Speed Cola: Faster reloads = more survivability

    • Electric Cherry: Creates electric bursts on reload

    • Elemental Pop: Stacks additional elemental damage randomly

Bonus: Getting It from the Mystery Box

If you don’t want to complete the Easter egg, there’s about a 5% chance of pulling the Reaper X9 from the Mystery Box after Round 20.

Look for a purple glow on the box when it's hot — your odds go up slightly then.

Final Thoughts

The bo6 bot lobby service Reaper X9 isn’t just a weapon — it’s a reward. Its unlock process is satisfying, its upgrades are insane, and it changes the way you play Zombies.

Master this path, and you’ll not only survive longer — you’ll dominate.