How to Complete the Rex Infernus Easter Egg (BO7 Zombies Main Quest)

Rex Infernus is the final round-based Zombies map in Black Ops 7. It arrived on 20 August 2026 with Season 05 Reloaded.

Its Main Quest ends the Dark Aether story. Your crew cleanses the 4 Shadowsmith temples, finds the Warden's inner sanctum and defeats him.

The quest runs in 5 steps. Build the Warden's Blight Wonder Weapon, upgrade the Void Claw into the Void Talon, take control of the Nexus Forge, cleanse the 4 temples, then beat the Warden.

Bring an explosive, the Shatter Blast and Shadow Rift ammo mods and a way to Pack-a-Punch the Warden's Blight. Several steps ask for its charged shot.

Directed Mode came to Rex Infernus with Season 06 on 17 September 2026. It shows the quest steps on screen.

A PRO can complete the Rex Infernus Main Quest on your account.

The quest opens once Pack-a-Punch and the Void Claw are ready. Both come from the Nexus Forge, the hub in the middle of the map.

Open Pack-a-Punch

1. Place the World Seed on the central platform of the Nexus Forge. 2 Dread Skulls appear.
2. Shoot a Dread Skull until it flies off toward a Shadowsmith temple. Keep shooting until it explodes inside.
3. Pick up the Usurped Flame from the brazier in that temple. Throw it into a brazier on the central platform.
4. Repeat with the 2nd Dread Skull.
5. Turn both cranks on the Nexus Forge. The platform lowers and Pack-a-Punch opens.

Take the Void Claw

Interact with a small pedestal with a green orb next to the Forge. The Void Claw grapples you to ledges and drags objects to you.

Step 1: build the Warden's Blight

1. Grab a Void Claw and grapple to the ledge above the Dravakar Entrance door. Blow open the right wall with an explosive and take the Fracture of Nyxara.
2. Drag a floating pink orb, an Astral Tear, to Pack-a-Punch with the Void Claw. Crank the Forge to surge the Nexus.
3. Take the Astral Flame from a brazier above Pack-a-Punch. Run to the Nyxara Sanctuary and shoot the flame at the eye on the wall.
4. The flame bounces between crystals. Turn the crystals with the Void Claw and place the Fracture of Nyxara in the empty slot, until the flame hits the door of the Nyxara Inner Sanctum.
5. Enter the sanctum. The floor collapses into a chamber with a vine. Stand by the vine while it drains your health until its bar fills.
6. Eat the fruit from the vine. It can grow from Round 8. You land in a forest with 3 bodies.
7. Collect the 3 Wonder Weapon parts by the bodies. They lie by the rock in the middle, under the cabin floorboards and by the cave.
8. Go to the Dravakar Sanctuary and listen to the blue writing on the wall. Set the 3 levers to match the riddle with the table below.
9. Pull the lever inside the central pillar. The pillar lowers.
10. Grapple up into the Dravakar Inner Sanctum and take the Warden's Blight from the anvil.

Each riddle has a fixed lever count. The left lever sits by the stairs, the middle lever is in the room with the writing, and the right lever is in the wall on the right.

Pack-a-Punch the Warden's Blight before Step 2. Its charged shot opens the next steps.

Step 2: upgrade the Void Claw into the Void Talon

1. From the Nexus Forge, shoot the basketball in the broken window of the house. This works from Round 3.
2. Over the next rounds, 4 blue symbols appear on the house 1 at a time. Note their order.
3. On an Exfil round, shoot the 4 symbols in that order. The Exfil sends you into Her House.
4. Inside Her House, fire a charged shot of the Pack-a-Punched Warden's Blight to drop the Eye of the Forge. Pick it up.
5. Kill the Ravagers and Doppelghasts that spawn, then return to the Nexus Forge.
6. Hold interact on a Void Claw pedestal to empower it with the Eye of the Forge. It now gives the Void Talon.

Step 3: take control of the Nexus Forge

1. Shoot the small square plates off the 3 pillars around the Forge with the Void Talon.
2. Go under the Forge and shoot the same plates off the walls of the center room. Clear the spider webs behind them with an explosive or the Warden's Blight.
3. Pull the crank at Pack-a-Punch to surge the Forge.
4. Go back under the Forge and work the switch in the floor until it locks. The pillar levers now move the 3 pillars.

Before each temple cleanse, align the 3 pillars with that temple. The light enters the mouth of the Shadowsmith head outside its entrance when the pillars are right.

Step 4: cleanse the 4 temples

Every cleanse starts with an item placed in the temple's Main Chamber brazier. An Astral Flame lights the brazier, and a mist latches onto a zombie. Kill that zombie with the right Titan Trap.

1. Work the square plate in the Main Chamber as the table says, and a circular plate appears.
2. Raise the circular plate with a charged shot. Shoot its edge to steer the light beam onto the target wall.
3. Kill zombies to feed the beam souls until the wall breaks and reveals a statue.
4. Shoot the statue to start a lockdown. Kill every Shadow Soul, then shoot the statue again.
5. Pull a purple orb under the temple's head in its Passage with the Void Claw. Raise it into the head with a charged shot.
6. Wait for rain, then shoot an Astral Flame at the orb. Lightning strikes and the temple is cleansed.

It rains on special rounds. The Veytharion cube puzzle opens a pool, and using it brings rain on the next round.

The Veytharion cube puzzle

Death Perception shows 4 cubes around the Veytharion Sanctuary and Main Chamber. Drop all 4 in front of the puzzle wall, then follow this order. The Fire cube must never touch the Water or Flower cube.

1. Place Fire, then Hand, then Water, then Flower in the left vertical slot.
2. Move Fire to the horizontal slot, then Hand. Hit the glowing circle to shift the slot right.
3. Move Fire to the right vertical slot. Hit the circle to shift the slot left.
4. Move Water to the horizontal slot. Hit the circle to shift the slot right.
5. Move Hand, then Water to the right vertical slot.
6. Move Fire to the horizontal slot, then Hand. Hit the circle to shift the slot left.
7. Move Hand, then Fire to the left vertical slot.
8. Move Flower to the horizontal slot, then Hand. Hit the circle to shift the slot right.
9. Move Flower to the right vertical slot. Hit the circle to shift the slot left.
10. Move Fire to the horizontal slot. Hit the circle to shift the slot right.
11. Move Hand, then Fire to the right vertical slot. The wall opens on a Random Perk and the rain pool.

Step 5: defeat the Warden

Go to the Nexus Core under Pack-a-Punch. Each player stands in 1 of the 4 circles and interacts to drop into the arena.

2 Dread Skulls float beside the Warden. Destroy both to open a weak spot on the tip of his tail, then hit it with bullets.

When he turns immune, kill the Shadow Souls around the arena to make him vulnerable again.

Warden's Stingers rise from the ground in later phases. Destroy them before enough gather for their wipe attack.

At some point he sends you to a jail cell. Kill the HVT there or survive the timer to come back with a buff.

Void Claw pedestals stand in the arena. Grapple debris and keep your footing when he charges.

Reward	How you earn it
Bloodthorn Wonder Weapon skin	Complete the Main Quest in Standard Mode
Rex Infernus Calling Card	Complete the Main Quest in Standard Mode
10,000 XP	Complete the Main Quest in Standard Mode
Netherclaw Wonder Weapon skin, a Directed Mode Calling Card and 5,000 XP	Complete the Main Quest in Directed Mode
Early Completion Calling Card	Complete the Main Quest before Directed Mode arrived on 17 September 2026

Rex Infernus is the last of 6 round-based maps. Completing the Main Quest on every map opens a final side quest built around the Twins and their toys.

The Paradox Junction quest is 1 of those 6. Its steps and piano code are in the Paradox Junction Easter Egg guide.

Every BO7 Zombies map and mode is in the Black Ops 7 Zombies guide.

Play the 1st clear on Directed Mode if you want the steps on screen. Standard Mode gives no prompts.

Pick up Death Perception early. The Veytharion cubes are easiest to see with it.

Have Shatter Blast and Shadow Rift ready before Step 4. The Dravakar cleanse needs Shatter Blast, and the Nyxara cleanse needs Shadow Rift.

Shoot the basketball as soon as you leave the house on Round 3. The 4 symbols then appear while you build the Warden's Blight.

Keep the Warden's Blight Pack-a-Punched. The plates, the orbs and the Eye of the Forge all need its charged shot.

Save a special round for a temple finale. It rains on those rounds, and the lightning only strikes in the rain.

Camos earned in Zombies count toward the Zombies mastery track. That ladder is in the Black Ops 7 camo guide.

A Rex Infernus order completes the Main Quest on your account. A PRO plays the map for you from the World Seed to the Warden.

Each map order adds 1 Legendary or Ultra GobbleGum and 10,000 Military Rank XP.

Add-ons cover the Easter Egg after Round 50, every side quest on the map and an express run.

Pick Rex Infernus on the BO7 Zombies boost page.