Call of Duty: Modern Warfare III (2023)

Modern Warfare III (2023) Caustic River Camo

Zombies · Holger 556Zombies camoOriginal challenge route
Caustic River camo — Call of Duty: Modern Warfare III (2023)
Zombies · Zombies · Holger 556

How do you unlock Caustic River in Modern Warfare III (2023) Zombies?

Caustic River is a Zombies base camo in Modern Warfare III (2023), earned with the MWIII Holger 556. Reach weapon level 24 on the Holger 556; then in Zombies, get 200 Critical Kills. Once earned, this base camo can be equipped on eligible MWII and MWIII weapons in MWIII.

Retro Base Camos camos
  1. Zombies · HaymakerBelow Zero
  2. Zombies · Rival-9Cartilage
  3. Zombies · Holger 556Caustic River
  4. Multiplayer · TYRCherry Blossom
  5. Multiplayer · SVA 545Cinders
  6. Multiplayer · DG-58 LSWCold Fall

Reviewed September 18, 2026 · Compiled from official Call of Duty progression and season announcements and the dated public wiki camo and weapon tables. No live in-game verification or current event availability is claimed. · Sources: Call of Duty — MWIII weapon and camo progression · Call of Duty — launch weapon roster and carry forward · Call of Duty — Season 6 final progression and Ranked rewards · Call of Duty Wiki — camo challenge catalog · Call of Duty — Warzone Season 4 Ranked rewards · Call of Duty — Warzone Season 6 Ranked rewards · Event sources: Call of Duty Wiki reference

How do you make progress toward Caustic River?

Open the Holger 556 camo panel and confirm the required level before tracking this zombies objective.

Once earned, this base camo can be equipped on eligible MWII and MWIII weapons in MWIII.

Caustic River — common questions

Which weapon and mode unlock Caustic River?

Caustic River is a Zombies base camo in Modern Warfare III (2023), earned with the MWIII Holger 556. Reach weapon level 24 on the Holger 556; then in Zombies, get 200 Critical Kills. Once earned, this base camo can be equipped on eligible MWII and MWIII weapons in MWIII.

Does Caustic River count toward weapon mastery?

Once earned, this base camo can be equipped on eligible MWII and MWIII weapons in MWIII.

Is Caustic River still obtainable?

Original challenge route. Public sources were reviewed; no live in-game completion test was performed.

More Modern Warfare III (2023) camos

Camo directory →
Acid Drip camo — Call of Duty: Modern Warfare III (2023)ChallengeAcid DripMultiplayer · COR-45Below Zero camo — Call of Duty: Modern Warfare III (2023)ChallengeBelow ZeroZombies · HaymakerCartilage camo — Call of Duty: Modern Warfare III (2023)ChallengeCartilageZombies · Rival-9Cherry Blossom camo — Call of Duty: Modern Warfare III (2023)ChallengeCherry BlossomMultiplayer · TYRCinders camo — Call of Duty: Modern Warfare III (2023)ChallengeCindersMultiplayer · SVA 545Cold Fall camo — Call of Duty: Modern Warfare III (2023)ChallengeCold FallMultiplayer · DG-58 LSWDecay camo — Call of Duty: Modern Warfare III (2023)ChallengeDecayZombies · MCW 6.8Desolate Ops camo — Call of Duty: Modern Warfare III (2023)ChallengeDesolate OpsMultiplayer · Striker 9