Rex Infernus Easter Egg Guide: BO7 Zombies Main Quest

The Rex Infernus easter egg is the final main quest of Black Ops 7 Zombies: you unlock Pack-a-Punch, build the Warden's Blight Wonder Weapon, upgrade your grapple into the Void Talon, repair the Nexus Forge, solve the Veytharion cube puzzle, cleanse four Shadowsmith temples, then defeat the Warden. Rex Infernus launched on August 20, 2026 as the last round-based map, and the newest Zombies map since then, Tenshu, is a Survival map with no main quest. The easiest way to finish is Directed Mode, added on September 17, which shows each step on screen and caps the match at round 15. This guide walks through every stage, flags where the community guides disagree, and lists the rewards.

Checked against Activision's Season 05 Reloaded and Season 06 announcements and the Rex Infernus walkthroughs from Dexerto, Game Rant and Sportskeeda on November 12, 2026.

Rewards, modes and dates are official. The quest steps come from three community walkthroughs, and they differ on some details, especially how each temple's hidden reflector is revealed. Where they disagree, this guide says so. If a step fails, play Directed Mode, where the game itself tells you what to do next.

What do you need before starting the Rex Infernus easter egg?

A full squad helps, plus time: the quest runs past round 11 and needs rain for each temple cleanse. Gather these as you go.

Requirement	Why
Void Claw (grapple)	Pulls orbs, reaches ledges and moves crystals; unlocked with Pack-a-Punch
Warden's Blight, Pack-a-Punched	Its charged shot lifts orbs and reflectors in almost every later step
Shatter Blast and Shadow Rift ammo mods	Needed for the Dravakar and Nyxara temple items
Round 8 or later	The tree fruit for the Wonder Weapon parts appears from round 8, per Game Rant
An Exfil round	Round 11 and every 5 rounds after, for the Eye of the Forge

How do you unlock Pack-a-Punch in Rex Infernus?

Answer the phone, kill two flying skulls and return their flames to the Nexus Forge. All three walkthroughs agree on this order.

1. Start in Her House. Wait in the basement until round 3, when the phone rings, and answer it to reach the Nexus Forge.
2. Place the World Seed at the central altar. Two Dread Skulls appear.
3. Damage a skull and it flees behind a nearby locked door. Break in, kill it, and it drops an Usurped Flame.
4. Carry the flame back and throw it into a matching brazier at the Forge. Repeat for the second skull.
5. Turn both crank wheels to raise Pack-a-Punch. The Void Claw now sits on a pedestal at the bottom of the Forge.

How do you build the Warden's Blight?

Charge an Astral Flame, open Nyxara's inner sanctum with a crystal puzzle, collect three parts in a hidden forest, then solve the Dravakar riddle and forge the weapon at the anvil.

1. Astral Flames: use the Void Claw to pull a purple orb from the sky into Pack-a-Punch, then turn the crank wheels to split it into two purple flames.
2. Fracture of Nyxara: find the missing crystal in Dravakar's temple and place it on the empty pedestal in Nyxara's chamber. Game Rant breaks a wall near the ceiling with a grenade; Dexerto wall-jumps onto a hidden platform at the temple entrance.
3. Crystal puzzle: throw an Astral Flame at the eye in Nyxara's sanctuary, then grapple the wall crystals so the bouncing projectile reaches the sealed door.
4. The tree: stand under the roots in the inner sanctum and let it drain your health. Eat the fruit it drops to enter the forest.
5. Parts: search three corpses: one by a rock in the middle, one by a burned cabin (melee the wooden panel), one at a cave entrance in the back left.
6. Dravakar riddle: read the blue wall inscription in Dravakar's sanctuary. It gives one of four quotes, and the quote sets the order for the room's mechanism. Get it wrong and you retry next round.
7. Forge: grapple into Dravakar's inner sanctum and use the anvil. Pack-a-Punch the Warden's Blight right away.

How do you get the Eye of the Forge and the Void Talon?

Track four symbols on Her House, shoot them in order on an Exfil round, then use a charged shot in the house's upstairs bathroom.

1. From the Nexus Forge, scope onto the basketball in Her House's collapsed roof and shoot it. A symbol appears on the house.
2. A new symbol appears each round. Note the order of all four.
3. On the next Exfil round, shoot the symbols in that order, use the Exfil booth and kill the HVT. Sportskeeda names it as a spider boss, Obliquar.
4. Back inside Her House, fire a charged Warden's Blight shot into the upstairs bathroom to release the Eye of the Forge. Survive the Ravagers and Doppelghasts, then answer the phone.
5. Use the Eye on one Void Claw pedestal. That pedestal now gives the Void Talon, which lasts much longer, so pick one you pass often.

How do you repair the Nexus Forge and solve the cube puzzle?

Use the Void Talon to strip the marked panels around the Forge, clear the webs, surge the generators, then align the Forge to aim at a temple.

Game Rant counts 15 panels: three on the pillars around Pack-a-Punch and six on each wall below it. Destroy the webs behind them with explosives or the Wonder Weapon, crank to surge the Nexus, and pull the lever under Pack-a-Punch. The rotating pillars or monoliths around the Forge now aim a beam into whichever temple you want to cleanse.

The Veytharion cube puzzle comes next. Four stone blocks are hidden in Veytharion's sanctuary: Fire, Air (hand), Earth (leaf) and Water (waves). Stack them in the wall device in that order from bottom to top, then follow the transfer sequence, shooting the center dial to move blocks between columns until all four sit in the right column in a set order. Game Rant prints a 20-move sequence; a mistake means waiting a round. Finishing opens the pool or portal you use to call rain on the next round, which every temple cleanse needs.

How do you cleanse the four temples in Rex Infernus?

Each temple follows the same pattern: aim the Forge beam at it, burn its corrupted item with an Astral Flame, feed the Titan, break the hidden reflector puzzle, then shoot the statue's forehead with an Astral Flame during rain.

Temple	Corrupted item	How to get it
Dravakar	Blacksmith's Hammer	Equip Shatter Blast and kill zombies beside the four shields in the inner sanctum; one shield hides the hammer
Nyxara	Ancient Scroll	Equip Shadow Rift and kill zombies with it, easiest in the forest, until the scroll drops
Caltheris (Kaltharis)	Corrupted item	Random drop from grappled orbs around the map, per Dexerto
Veytharion	Woven Sash	Near a rock at the back of the map between Veytharion and Nyxara; Sportskeeda says it only spawns in rain

After lighting the item, a zombie absorbs a symbol. Lead it to the Titan Trap whose smoke color matches so the Titan crushes it and frees a shackle. Next, interact with the temple's pressure plate to hear a quote and reveal its reflector. The walkthroughs disagree on the reveal for each temple (grenade kills on the tile, standing still while aiming, going prone through a round change, or jumping 30 times are all reported), so if one method fails, try another or use Directed Mode. Lift the reflector with a charged shot, aim the beam where the guides show, kill zombies under it to charge it, shoot the stone head, kill the four Shadow Souls, then break the head.

To finish, grapple an orb under the temple's statue, launch it into the head with a charged shot, call rain at the Veytharion pool, and throw an Astral Flame at the forehead while it rains. Lightning strikes and the temple is cleansed.

How do you beat the Warden in Rex Infernus?

Start the fight from a blue circle in the Nexus Core. The core loop is to kill Dread Skulls to expose the Warden's weak spot, then shoot it.

• Shadow Soul phases: the Warden turns immune while four Shadow Souls guard him. Kill them to make him vulnerable.
• Stingers and the ring: Warden's Stingers rise from the ground, and a slow floating ring drops explosives. Stay mobile.
• Web Mother: mid-fight you are pulled into an HVT fight with a Web Mother. Kill it fast to return.
• Final phase: Dread Skulls, Shadow Souls and Stingers all spawn at once. Split skull targets between teammates so the Warden cannot replace them quickly.

What are the Rex Infernus easter egg rewards?

The main quest gives the Bloodthorn Warden's Blight skin, a Calling Card and 10,000 XP. Other modes and challenges add more.

Activity	Reward
Main Quest	Bloodthorn Wonder Weapon skin, Calling Card, 10,000 XP
Main Quest before Directed Mode arrived	Unique Calling Card variant
Directed Mode completion	Netherclaw Warden's Blight skin, Calling Card, 5,000 XP
All Intel (audio logs, documents, artifacts)	Calling Card, 10,000 XP
Mastery Challenge	Animated Calling Card, 10,000 XP
Every BO7 round-based main quest	Super Easter Egg access, including The Warden Operator

Cursed Mode is the opposite of Directed: no quest guidance, a limited HUD and a starting pistol. Try it only after a normal clear.

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