What can you do as a free member?

Member benefits illustration

Create your free account today and unlock all our premium features and tools to enhance your gaming experience.

Member benefits illustration

Create your free account today and save articles to your watchlist and get notified when they're updated with new information.

Member benefits illustration

Create your free account today and save your favorite games for quick access later, synced across all your devices.

Member benefits illustration

By creating a Game8 account and logging in, you'll receive instant notifications when someone replies to your posts.

Comment rating feature illustration

By creating a Game8 account and logging in, you can make use of convenient features in the comments section, such as rating and sorting comments.

Premium archive feature illustration

By creating a Game8 account and logging in, you can access Premium articles that are exclusively available to members.

Site Interface

Guest
Free Member
Article Watchlist
Game Bookmarks
Cross-device Sync
Light/Dark Theme Toggle
User Profiles
Direct Feedback
Comment Rating

Game Tools

Guest
Free Member
Interactive Map Access
Interactive Map Pins
Interactive Map Comments
Interactive Map Pins Cross-Device
Check List
Event Choice Checker
Deck Builder Cross-Device
Message Board Notification
Message Board Cross-Device
Build Planner
Stat Calculator
Diagnostic Tool
Weapon/Armor Wishlist

Want more information?Learn more

Call of Duty Modern Warfare 3 (MW3)

Countermeasures Mission Walkthrough

Add to Watchlist

MW3 Zombies - Countermeasures Mission Walkthrough
Countermeasures is the second Act 4 mission in Call of Duty: Modern Warfare 3 (MW3). Read on to see the objectives, rewards, and a full walkthrough for Countermeasures!

Countermeasures Walkthrough

Countermeasures Objectives

1
Investigate the Anomaly
Go to the Dark Aether Rift located in Zone F4, which is around the northwestern part of the High Threat Zone. It should be marked on your Tac-Map with an exfil icon with a star.
2
Enter the Dark Aether
Interact with the Dark Aether Rift to enter the Dark Aether area and begin the mission. If you're in a squad, every member should vote "yes" via the Tac-Map to be able to enter the rift.

Once the required number of votes is reached, a 10-second countdown will ensue, and your whole squad will then be transported to the Dark Aether.
3
Investigate the Nearby Distress Signal
After arriving at the Dark Aether, proceed to the second floor of a nearby building, where a distress signal was sent by another squad.
4
Escort the ACV
Escort the ACV towards Fletcher's location together with the remaining Terminus agents. Similar to a normal Escort Contract, there would be zombies spawning in different directions, so make sure you're prepared to take them on.
5
Investigate the Source of the Interferance
An unknown signal will stop the ACV in the middle of escorting it. In a nearby carnival, you should be able to see and approach a pulsating light post. Getting close enough should spawn a unique Mimic that you can kill to stop the signal interference.
6
Rescue Fletcher
After getting the ACV back on, continue escorting it until you reach the Mall where Fletcher is. Here, you'll have to destroy 15 Infected Spores to be able to rescue Fletcher. Most of these spores are found near the staircases or hanging from the ceiling.

We recommend taking the Death Perception perk in order to be able to highlight nearby spore locations. It's also best to bring a Gas Mask in order to mitigate spore damage. If you don't have one equipped, you'll also find an abundance of them inside the Mall.
8
Escort Terminus to the Anomaly Site
After clearing the Mall, simply go back to the ACV and wait for Fletcher to arrive. You'll then proceed to escort the ACV to the Anomaly Site.
9
Activate the PND
Activate the PND located at the Anomaly site. This will trigger an Outlast Contract where you'll have to stay within the environment of the PND while killing approaching zombies.
10
Defeat Krawvir
After completing the Outlast Contract, Fletcher's true intentions are revealed. He betrays you and the squad by leaving everyone in the Dark Aether to fight Krawvir.

Krawvir in simple terms, is an empowered Mangler. You should be able to easily deal with him by moving around in a circle and shooting when you're at a distance. We also recommend using weapons with innately high explosive power or using Napalm Burst or Shatter Blast Ammo Mods to deal more damage.

Defeating Krawvir will spawn you a Reward Rift where you'll be able to obtain the Drum, which is a key item to unlocking the new Dark Aether area.
▶︎ What to Do With the Drum

Countermeasures Rewards

Bad Signal Rewards
MW3 Zombies - Monkey Business.pngMonkey Business 1000XP

List of All Charms

Modern Warfare 3 (MW3) Related Guides

Modern Warfare 3 - Zombies Game Mode

Zombies Mode Walkthrough and Guide

All Zombies Guides

Zombies Guides and Lists
Zombies Missions Zombies Season 2
Zombies Season 1 Zombies Map
Zombies Weapons Crafting Schematics
Aetherium Challenges and Enemies
Zombies Perks Zombies Ammo Mods
Zombies Field Upgrades Zombies Gear
Contracts Zombies Power-Ups

All Zombies Acts 1 to 4 Missions

Missions
Direct Line Treasure Hunter
Road Rage Wall Power
Firepower Take Up Arms
Interceptor Freezer Burn
Minelayer Pit Stop
Saboteur Automated Backup
Infiltrator Hands Off
Blasted Bring 'Em On
Hostile Takeover Chaperone
Nest Wrecker Where's Dr. Jansen?
Extraction Same Day Delivery
Safe Cracker Ascension
Merc Cleanup Reaper
Guardian Angel Shocked
More Firepower Bounty Hunter
Essence of Aether Heist
Mind Control Frost Bite
Exterminator Shepherd
Two Factor Authentication Firestarter
Ghosted Alternate Current
Most Firepower Paint the Target
Crash and Burn Storm the Castle
Closing Time Spring Cleaning
Holdout Defeat Zakhaev
Bad Signal Countermeasures
Union Ascension (Story Mission)

Comment

3 Anonymous Anonymous over 1 year

Random thought, bp50 legendary, pack 3, just stomped that map. But be prepared, grab death percep.. so much easier to find wall pimples(infested)

2 Anonymous Anonymous over 1 year

Don't know how many meteorites, I'm assuming based off past zombies.

Author

    Please participate in our site
    improvement survey
    12/2025
    Would you assist in
    improving Game8's site?
    ×
    This survey will take about 1 minute.
    Your answers will help us to improve our website.
    We are listening to our users' valuable opinions and discussing how to act on them.
    The information collected through this survey will be used for the purpose of improving our services. In addition, the information will only be disclosed a part of a statistic in a format that will not allow identification of personal information.
    Begin Survey

    All rights reserved

    Guide Index