Call of Duty: Modern Warfare II (2022)

Modern Warfare II (2022) M13C

Assault RiflesIntroduced through the Shadow Siege limited-time event in Season 05; the original event is historical.Takes camo
Assault RiflesM13C — Call of Duty: Modern Warfare II (2022) weapon render

How do you unlock the M13C?

The M13C is in the Assault Rifles roster for Modern Warfare II (2022). Introduced through the Shadow Siege limited-time event in Season 05; the original event is historical. Its base challenge set includes Cemented, Poison Rivers, Demise, Virulent Strain.

UnlockIntroduced through the Shadow Siege limited-time event in Season 05; the original event is historical.
AvailabilityOriginal Season 5 access documented; expired Battle Pass and event routes are not claimed to be active today.
Takes camoYes

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

Weapon sources: GamesAtlas — M13C · Emil Carlsson — Orion challenge reference (MIT) · Call of Duty — MWII launch progression and mastery · Pro Game Guides — M13C Shadow Siege unlock

How does the M13C play in Modern Warfare II (2022)?

RoleAssault Rifle
Challenge noteGold: 3 kills without dying, repeated 10 times. Platinum: 25 longshot kills. Polyatomic: 25 headshot kills.
Progression tipThe M13C has 4 base camo challenges. Finish its base set to open Gold. The Assault Rifles Platinum gate requires 8 Gold weapons in that class, counting eligible later additions. After 51 Platinum weapons, complete this weapon’s Polyatomic challenge. Orion needs 51 Polyatomic weapons; it is then awarded on each weapon with Polyatomic.
Camo tipEarn weapon XP until the challenge is open, then use the named weapon for the required eliminations.

M13C — Multiplayer camo challenges

Cemented Reach weapon level 2 on the M13C, then complete 50 kills with it.
Poison Rivers Reach weapon level 5 on the M13C, then complete 20 kills while crouched with it.
Demise Reach weapon level 8 on the M13C, then complete 40 kills while aiming down sights with it.
Virulent Strain Reach weapon level 10 on the M13C, then complete 15 double kills with it.

Every camo, exact unlocks — see the full Modern Warfare II (2022) camo directory.

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M13C — common questions

How do you unlock the M13C in Modern Warfare II (2022)?

Original Season 5 access — M13C: Introduced through the Shadow Siege limited-time event in Season 05; the original event is historical. Original Season 5 access documented; expired Battle Pass and event routes are not claimed to be active today.

How do you unlock camos on the M13C?

The M13C has 4 base camo challenges. Finish its base set to open Gold. The Assault Rifles Platinum gate requires 8 Gold weapons in that class, counting eligible later additions. After 51 Platinum weapons, complete this weapon’s Polyatomic challenge. Orion needs 51 Polyatomic weapons; it is then awarded on each weapon with Polyatomic.

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