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The subject of this article appears in Call of Duty: Mobile
Overview.

Overview.

Collapse Mutation is an event in Call of Duty: Mobile available between November 6th and December 10th, 2025. It is themed around the Girls' Frontline franchise.

Overview[]

In Collapse Mutation, players were tasked with eliminating enemies using their T-Doll player in the dedicated event mode. Players were able to produce additional T-Dolls and upgrade their manpower, ammunition and their dedicated rations and parts. By doing neural upgrades to a T-Doll, would allow them to have additional skills that aid the player. In doing all the above, players could earn rewards in two dedicated reward pages: Kalina's Rewards and Exoverse Rewards.

In Kalina's Rewards, players had to complete story missions that rewarded various items and consumables. In Exoverse Rewards, players had to upgrade their T-Doll to earn event exclusive and cosmetic rewards.

Exoverse Rewards[]

CollapseMutation Event ExoverseRewards CoDM
Item Name Stars
Wingsuit Skin SF Industrial
Rare
4 Stars
Spray Girls' Frontline: Suomi
Epic
8 Stars
Consumable Credits x100
Rare
12 Stars
C4 Skin Symphonic Night
Epic
16 Stars
T-Doll Trainer UMP45
Legendary
20 Stars
Sticky Grenade Skin SF Industrial
Rare
24 Stars
Tank Skin Symphonic Night
Epic
28 Stars
Consumable Credits x120
Rare
32 Stars
Weapon Charm G11
Epic
36 Stars
Avatar Girls' Frontline: Suomi
Epic
40 Stars
Parachute Skin SF Industrial
Rare
44 Stars
Consumable Credits x120
Rare
48 Stars
T-Doll Trainer M870
Legendary
52 Stars
Arctic .50 Skin SF Industrial
Rare
56 Stars
Dingo Skin Symphonic Night
Epic
60 Stars
Calling Card NTW20
Epic
64 Stars
Consumable Credits x150
Rare
68 Stars
T-Doll Trainer 98K
Legendary
72 Stars
Calling Card QBZ-191
Epic
76 Stars
GKS Skin Impenetrable Wall
Epic
80 Stars
JAK-12 Skin SF Industrial
Rare
84 Stars
Weapon Charm Suomi
Epic
88 Stars
PPSh-41 Skin SF Industrial
Rare
92 Stars
Calling Card Suomi
Epic
96 Stars
FFAR 1 Skin Symphonic Night
Epic
100 Stars

Gallery[]

Videos[]

Trivia[]

  • The entire event takes systems, mechanics and story beats directly from Girl's Frontline.
    • The event name references Eurosky Low-Emission Infectious Disease, a disease caused by the radiation of Collapse Fluid.
    • The Factory is a simplified version of T-Doll Production seen within Girls' Frontline.
    • A Special Guest is a reference to the April Fools event, in which the chibi sprite used for Kalina is replaced with a "Big Fat Tabby Cat" version of her, referencing a line said about her wish to be reborn as one.