After players complete the Extraction story mission in Act 1 of Modern Warfare 3 - Zombies, Operation Deadbolt, they will unlock the second act of the new Zombies story. Act 2, Mother of Invention, will have players work to set up Dr. Jansen's lab and begin working against Zakhaev's Terminus Outcomes mercenary group by diving deeper into completing contracts, upgrading weapons, and earning kills, all while working toward the next story mission, Shepherd.

While the mission objectives get more complicated, the rewards improve to match players' efforts, with higher XP amounts and higher tier acquisitions like epic aether tools and schematics like the cryo freeze ammo mod. Here is a full list of every mission, objective, and reward in Act 2 of Modern Warfare 3 - Zombies, Mother of Invention.

Related
Modern Warfare Zombies: Act 1 - Operation Deadbolt Mission List (And All Mission Rewards)

A full list of every mission and the respective objectives and rewards for Operation Deadbolt in Call of Duty: Modern Warfare 3 Zombies.

Tier 1 Mission

mw3 - mother of invention - tier 1

There is one mission in the first tier of Act 2, awarding players a refined aetherium crystal acquisition that can be used to instantly Pack-a-Punch a weapon to Tier II.

Mission

Objective

Rewards

Same Day Delivery

  • Complete a Cargo Delivery Contract
  • Destroy the enemy helicopter chasing the Cargo Delivery Vehicle
  • Destroy the Cargo Delivery Vehicle after contract completion
  • Refined Aetherium Crystal Acquisition
  • 3000 XP

Tier 2 Missions

mw3 - mother of invention - tier 2

Mother of Invention's second tier has six missions available for players. Completing the first will award the Cryo Freeze schematic.

Mission

Objective

Rewards

Safe Cracker

  • Complete a Raid Weapon Stash Contract
  • Kill 30 Zombies attracted by the safe drill
  • Do not allow the safe drill to pause
  • Exfil with the Cryo Freeze Formula
  • Quick Revive Can Acquisition
  • 2000 XP

Ascension

  • Use a Redeploy Drone to free fall or parachute to a different Threat Zone
  • Pistol Partner Emblem
  • 2000 XP

Merc Cleanup

  • Kill 20 Mercenaries in Merc Camps
  • Loot 3 Merc Camp caches
  • Deadshot Daiquiri Can Acquisition
  • 2000 XP

Reaper

  • Collect 15 items from Harvester Orbs
  • Destroy 3 Harvester Orbs
  • PD Flopper Can Acquisition
  • 2000 XP

Guardian Angel

  • Heal Operators 20 times with Healing Aura field upgrade
  • Epic Aether Tool Acquisition
  • 2000 XP

Shocked

  • Stun 25 Zombies with Dead Wire Ammo Mod
  • Stun 5 Special Zombies with Dead Wire Ammo Mod
  • Madness Sticker
  • 2000 XP

Tier 3 Missions

mw3 - mother of invention - tier 3

The third tier of missions in Act 2 has three missions.

Mission

Objective

Rewards

More Firepower

  • Pack-a-Punch a weapon to Level II
  • Kill 75 Zombies with a Level II Pack-a-Punched weapon
  • Kill a Special Zombie with a Level II Pack-a-Punched weapon
  • Survivors Calling Card
  • 2000 XP

Bounty Hunter

  • Complete a Big Bounty Contract for a Mangler
  • Complete a Big Bounty Contract for a Disciple
  • Complete a Big Bounty Contract for a Mimic
  • Dead Wire Ammo Mod Acquisition
  • 2000 XP

Essence of Aether

  • Collect the Essence Sample from the container in Hamza Bazaar at Hadiqa Farms
  • Collect the Essence Sample from the container in Rostova Shops at Levin Resort
  • Collect the Essence Sample from the container in Quadri Shopping Center at Zaravan City
  • Speed Cola Can Acquisition
  • 2000 XP
Related
Call of Duty: Modern Warfare 3 Zombies - Tips for Completing the Aether Extractors Contract

Take out the Terminus mercenaries and disables the three extractors to earn a Reward Rift and bonus essence in Call of Duty: Modern Warfare 3 Zombies.

Tier 4 Mission

mw3 - mother of invention - tier 4

Tier four has just one mission that awards players a new weapon charm and 3000 experience.

Mission

Objective

Rewards

Heist

  • Complete an Aether Extractor Contract
  • Collect a filled Essence Container from an Aether Extractor
  • Cranial Adjustment Charm
  • 3000 XP

Tier 5 Missions

mw3 - mother of invention - tier 5

The final tier in Act 2 before the story mission has three missions. Completing the final mission will add a Rare Aether Tool to the Schematics menu.

Mission

Objective

Rewards

Mind Control

  • Turn 20 Zombies with Brain Rot Ammo Mod
  • Allow 25 Zombies to be killed by turned Zombies
  • Elemental Pop Can Acquisition
  • 2500 XP

Frost Bite

  • Freeze 50 Zombies with Frost Blast Field Upgrade
  • Freeze 5 Mimics with Frost Blast Field Upgrade
  • Double XP Token Consumable
  • 2500 XP

Exterminator

  • Complete a Spore Control Contract
  • Complete the Contract in under 2 minutes and 30 seconds
  • Obtain Rare Aether Tool Schematic and Exfil
  • Bad Biker Calling Card
  • 2500 XP
Related
Call of Duty: Modern Warfare 3 Zombies - All Zombies Contracts

Call of Duty: Modern Warfare 3 Zombies contracts will challenge players with twists on tasks from Outbreak and DMZ along with brand new contracts.

Story Mission

mw3 - mother of invention - story mission

The final mission in Act 2 will progress the Modern Warfare Zombie story, uncovering if Operation Deadbolt can begin to reverse the incursion and stop the madness.

Mission

Objective

Rewards

Shepherd

  • Deploy to Neutralizer Test Site
  • Successfully test the Neutralizer
  • Warmageddon Vehicle Skin
  • 5000 XP
modern warfare 3
Call Of Duty: Modern Warfare 3 (2023)

Platform(s)
PC , PS5 , Xbox Series X , Xbox Series S , PS4 , Xbox One
Released
November 10, 2023
Developer(s)
Sledgehammer Games
Genre(s)
First-Person Shooter
How Long To Beat
5 Hours