Call of Duty: Modern Warfare II (2022)

Modern Warfare II (2022) Virulent Strain Camo

M13C · Level 10Multiplayer camoWeapon challenge
Virulent Strain camo — Call of Duty: Modern Warfare II (2022)
Multiplayer · M13C · Level 10

How do you unlock Virulent Strain in MWII Multiplayer?

Virulent Strain is a Fun base camo in Modern Warfare II (2022). Reach weapon level 10 on the M13C, then complete 15 double kills with it. Once earned, you can apply this base pattern to other compatible weapons; its challenge is completed with the M13C, not repeated separately on every gun.

Fun Base Camos camos
  1. Chimera · Level 17Snow Leopard
  2. ISO 9mm · Level 8Snow Tiger
  3. Tempus Torrent · Level 2Speckled
  4. Crossbow · Level 12Unlit Showers
  5. M13C · Level 10Virulent Strain
  6. TR-76 Geist · Level 8Wild Funk

Reviewed September 18, 2026 · Compiled from official progression/reward announcements and public weapon/camo references on September 18, 2026. Reference tables were cross-checked where available. Not verified in a live game; expired events and Battle Pass routes are identified as historical. · Sources: Call of Duty — MWII launch progression and mastery · Emil Carlsson — Orion challenge reference (MIT) · Call of Duty Wiki — MWII camo catalogue · GamesAtlas — MWII weapon access catalogue · Activision Support — Season 06 rewards · WZHUB — independent MWII challenge comparison · Event sources: Emil Carlsson — Orion challenge reference (MIT) · WZHUB — MWII Orion challenge reference (event scope checked 2026-09-18)

How do you make progress toward Virulent Strain?

Plan for two enemies close together in time; two isolated kills do not count as a double kill.

Virulent Strain contributes to the M13C’s base-camo completion. Finishing that weapon’s full base set opens its Gold challenge; earning this single pattern does not award Gold.

Virulent Strain — common questions

Which weapon unlocks Virulent Strain in Modern Warfare II (2022)?

Virulent Strain is a Fun base camo in Modern Warfare II (2022). Reach weapon level 10 on the M13C, then complete 15 double kills with it. Once earned, you can apply this base pattern to other compatible weapons; its challenge is completed with the M13C, not repeated separately on every gun.

How is Virulent Strain progress tracked?

Virulent Strain contributes to the M13C’s base-camo completion. Finishing that weapon’s full base set opens its Gold challenge; earning this single pattern does not award Gold.

Is Virulent Strain still obtainable?

Documented MWII weapon challenge. Current online progression was not tested in-game.

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