Call of Duty Modern Warfare 3 (MW3) Walkthrough & Guides Wiki

Call of Duty Modern Warfare 3 (MW3)

Two Factor Authentication Walkthrough

★ S6 New Guns: DTIR 30-06 | Kastov LSW
☆ S5 Reloaded Dark Aether Keys and Locations
★ Mr. Peeks | Drum | Locked Diary | Giraffe Toy
☆ Final MWZ Story Mission: Ascension Walkthrough
★ Zombies Map | Dark Aether Interactive Map
☆ Rarity vs Pack-a-Punch Damage Chart

Two Factor Authentication is an Act 3 mission in Call of Duty Modern Warfare 3 (MW3) Zombies. Read on to learn more about Two Factor Authentication objectives, and Two Factor Authentication rewards!

List of Contents

Two Factor Authentication Walkthrough

Two Factor Authentication Objectives

1
MW3 Zombies - Defending Server Console
Complete a Defend Ground Station Contract
Defend Ground Station contracts are marked on the map with a skull shield icon on a blue cellphone. Players will need to collect data from seismic refractors before starting the defense part of the contract.
▶︎ How to Complete Defend Ground Station Contract
2
Modern Warfare 3 - Mercenaries
Kill 20 Mercenaries during the Contract
Mercenaries will drop from time to time while the computer uploads data. A good way to hunt for mercenaries during the contract is to keep an eye on smoke screens in the surrounding area, these are where the mercenaries drop to halt the upload.
▶︎ Zombies Best Guns and Weapons Tier List
3
MW3 Maintain 60 Computer Health
Maintain the computer's health above 60%
In our experience the main threat with this contract is the shielded mercenaries as they protect other mercenaries from your shots and breach through your defense. Take the shielded mercenaries out by throwing a Semtex at them or flanking their exposed areas.
▶︎ List of All Zombies Gear
4
MW3 Death Perception Recipe
Exfil with the Death Perception Recipe
The Death Perception Recipe will be inside the reward rift once the contract is finished. To Exfil, look for the icon of a person stepping out of a doorframe. You can exfil by successfully boarding the exfil helicopter after calling it and defending the landing zone.
▶︎ How to Exfil

Invite Other Players to Defend the Computer Easily

Having other players for this mission is extremely helpful as they can ping the mercenary drop points while defending the ground station. Your teammates can also be assigned to defend each side where mercenaries might come from.

Two Factor Authentication Rewards

Two Factor Authentication Rewards
Flawless Aetherium Crystal x1 3000 XP

List of Aetherium and Aether Tools

Call of Duty 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)

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