How to Defeat Orcus in Modern Warfare 3 Zombies

Modern Warfare 3s Zombie mode features a strenuous grinding process with multiple bosses and operators to defeat. Players must progress through all mission Acts and Tiers until the final challenge. Orcus is the final boss in Zombies, and defeating them concludes the mode.


Orcus, also known as the Aether Worm, has powerful attacks and immense health, which makes taking them down challenging. Players have to be strategic with their approach and equip the best Modern Warfare 3 weapons and loadouts to take them down.

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How to Defeat Orcus in Modern Warfare 3 Zombies

To defeat Orcus in Modern Warfare 3 Zombies, players must do the following:

Understand the Monster’s Attacks

modern warfare 3 orcus

The Aether Worm has powerful attacks that quickly down players. Knowing and understanding these attacks can help players prepare for them with the right gear and equipment. Orcus’s main forms of attack include:

  • Aether Beam: This is the monster’s primary attack method, launched from its mouth and delivered in a straight beam.
  • Head Smash: This causes significant damage once it comes into contact with the ground.
  • Underground Charge: When the Aether Worm reaches half health, it dives underground, causing a charge towards a designated area.

To survive these attacks, players need armor plates and self-revive to protect themselves from the damage Orcus causes. They also need Perk-A-Colas to drink while fighting the Orcus to boost their lives and should have enough ammo.

Know Orcus’s Weak Points

how to defeat mw3 orcus boss

Targeting the monster’s weak point will maximize damage and reduce its health, ensuring the player’s victory. Orcus has glowing spots throughout its body, which are its weak points. Shooting these glowing areas will cause significant damage to the monster.

However, as the monsters’ health reduces, their attacks and aggression increase. This makes it vital to have powerful weapons like the SVA 545 assault rifle for better precision and accuracy. Keep a distance while attacking Orcus and prioritize evasion by taking cover. Other zombies in the area may also attack as players defeat Orcus, so be on the lookout and use grenades.

Gather a Team

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It’s nearly impossible to defeat Orcus as a solo player. As such, it’s highly recommended that players gather a team of at least four pros to surround the Aether Worm. If each player shoots, Orcus will have multiple targets to attack, which minimizes the overall risk for an individual player. Players can use this to their advantage by engaging the monster while others evade attacks.

After defeating Orcus, Modern Warfare 3 Zombies concludes with a teaser for the upcoming Season 1. The teaser shows a giant storm brewing.

modern warfare 3

Call Of Duty: Modern Warfare 3 (2023)

Franchise
Call of Duty, Call of Duty: Modern Warfare

Platform(s)
PC, PS5, Xbox Series X, Xbox Series S, PS4, Xbox One

Released
November 10, 2023

Developer(s)
Sledgehammer Games

Publisher(s)
Activision