Modern Warfare III (2023) Flatline Camo

Zombies · SA-B 50

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

Flatline is a Zombies base camo in Modern Warfare III (2023), earned with the MWII SA-B 50. Reach weapon level 14 on the SA-B 50; then in Zombies, get 10 Mangler Kills. Once earned, this base camo can be equipped on eligible MWII and MWIII weapons in MWIII.

RequirementReach weapon level 14 on the SA-B 50; then in Zombies, get 10 Mangler Kills.

ChallengeIn Zombies, get 10 Mangler Kills

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

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