MW3 & Warzone Altered Strain event end date & how to get free rewards

Season 4 Reloaded brings a plethora of themed events to MW3 and Warzone, providing players with numerous free rewards to earn. Among these is Altered Strain, which continues the DNA theme of Critical Countdown.

Therefore, all the information you require about the new mid-season event, including ways to obtain all the complimentary rewards, is provided here.

Start & end date

The Altered Strain event in MW3 and Warzone started on Wednesday, June 26, 2024 and will continue until Wednesday, July 24. This provides players with a four-week window to earn all of the available free rewards.

The Retro Warfare event, which also featured pixel-inspired elements and offered additional rewards, was released simultaneously with the event.

MW3 players in Mutation mode Season 4 Reloaded — Activision

The Altered Strain event revolves around a DNA theme.

Earning rewards

The Altered Strain offers 19 cosmetic prizes that players can earn at no cost. To obtain them, you must acquire “altered DNA samples”from defeated enemies and Loot Caches in Warzone.

As of June 26, only one out of the four Mastery Challenges is fully accessible. This guide will be updated with any new challenges that are announced.

All Rewards

Included are all the rewards that come with their respective requirements.

Mastery Challenge 1

Double XP Token – Collect 390 Ade-OGT (blue) DNA samples
Double Weapon XP Token – Collect 780 Ade-OGT (blue) DNA samples
Double Battle Pass XP Token – Collect 1,560 Ade-OGT (blue) DNA samples
Double Weapon XP Token – Collect 3,125 Ade-OGT (blue) DNA samples
Double Weapon XP Token – Collect 5,250 Ade-OGT (blue) DNA samples
Double Battle Pass XP Token – Collect 12,500 Ade-OGT (blue) DNA samples

Mastery Challenge 2

First Strike Mutation Augmentation – Collect 780 Cyto-RCG (orange) DNA samples
Pet Strain Charm – Collect 1,560 Cyto-RCG (orange) DNA samples
[Coming soon] Class Pet Emblem – Collect 3,125 Cyto-RCG (orange) DNA samples
[Coming soon] Flop Shot Mutation Augmentation – Collect 6,250 Cyto-RCG (orange) DNA samples
[Coming soon] Double XP Token – Collect 12,500 Cyto-RCG (orange) DNA samples

Mastery Challenge 3

[Coming soon] Repocket Mutation Augmentation – Collect 1,200 TBA (green) DNA samples
[Coming soon] You Tried! Calling Card – Collect 2,340 TBA (green) DNA samples
[Coming soon] Mutation Station Large Decal – Collect 4,675 TBA (green) DNA samples
[Coming soon] Attuned Mutation Augmentation – Collect 9,350 TBA (green) DNA samples

Mastery Challenge 4

[Coming soon] Galvanized Mutation Augmentation – Collect 1,560 TBA (red) DNA samples
[Coming soon] Battle Pass Tier Skip – Collect 3,125 TBA (red) DNA samples
[Coming soon] Dendritic Devastation Camo – Collect 6,250 TBA (red) DNA samples

Mastery reward

Strands and Slaughter Weapon Blueprint SOA Subverter — Activision

Be sure to rack up as many DNA samples as possible to fulfill the objectives and unlock the blueprint.

Upon completing all of the Masery Challenges, you will gain access to the Strands and Slaughter Weapon Blueprint for the SOA Subverter Battle Rifle.

Multiplayer Mutation Effects

The Altered Strain event will also bring augmentations with it, which will impact the Mutant powers in MW3’s multiplayer Mutation mode.

Below is a list of all available augmentations and the methods for unlocking them:

Augmentation	Unlock Requierment	Description
First Strike	Collect 780 Cyto-RCG (orange) DNA samples	Rapid cooldown on first ability used after respawn
Flop Shot	Collect 6,250 Cyto-RCG (orange) DNA samples	Diving from elevated surfaces produces a small explosion
Repocket	Collect 1,200 TBA (green) DNA samples	Kills with abilities have a chance to replenish tactical ability
Attuned	Collect 9,350 TBA (green) DNA samples	Reduced cost to acquire the Mutant Juggernaut
Galvanized	Collect 1,560 TBA (red) DNA samples	Temporary damage reduction from explosives

Whether you choose to enter MW3’s Mutation mode to acquire the augmentations or work your way through the event to obtain all the rewards, it is important to ensure that you have the top guns, controller, and audio settings in order to overpower your enemies.