The third mastery tier.
Unofficial fan tool, not affiliated with Activision. Challenge text comes only from the official Call of Duty blog (checked 2026-10-26); unconfirmed details say “not published officially”.
Requires Platinum on all 33 weapons, then each class challenge.
| Class | Harmonic Break challenge |
|---|---|
| Assault Rifle | Double kills (25 MP / 50 DMZ) |
| SMG | Hipfire kills |
| Shotgun | Kills without reloading |
| LMG | Kills without releasing the trigger |
| Marksman / Sniper | One-shot kills |
| Pistol | Hipfire kills |
| Launcher | Player kills |
| Melee | Kills from behind |
Only Assault Rifle counts are published; other counts are not published officially.
Source: official Call of Duty blog, checked 2026-10-26.
Next step → See Divergence, the final camo
Data last checked 2026-10-26 · how we source data
Per the official Call of Duty blog: 8 Military camos (weapon level), 3 Special camos, Gold, Platinum, Harmonic Break, then the Divergence mastery camo.
Get 15 kills in a single Multiplayer match, or 100 kills in a single DMZ match, with that weapon.
Earn Gold on every weapon in the class, then finish the class challenge. Assault Rifles: 50 headshots in Multiplayer or 100 in DMZ.
Harmonic Break needs Platinum on all 33 weapons plus a class challenge (Assault Rifles: 25 double kills in MP or 50 in DMZ). Divergence needs Harmonic Break on all 33 weapons.
Activision has published full Special camo challenges only for the Han 86 and Sang 9mm. Other lists online come from a pre-launch video, so we wait for official confirmation instead of guessing.
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One email when Activision confirms new camo challenges. Nothing else.