Mercurial Drift Camo

1. Tier 1Mercurial Drift
2. Tier 2Polyatomic Reforged
3. Tier 3Orion Reforged

Step by step

1. Level the weapon to unlock its 8 Military camos. The levels needed differ by weapon.
2. Complete the weapon’s 3 Special camo challenges. They open at set weapon levels, and DMZ asks for more kills than Multiplayer.
3. Gold: get 15 kills in a single Multiplayer match, or 100 in a single DMZ match.
4. Platinum: once every weapon in the class has Gold, complete that class’s Platinum challenge.
5. Harmonic Break: once all 33 weapons have Platinum, complete the class’s Harmonic Break challenge.
6. Divergence: it’s awarded automatically once you’ve completed 33 Harmonic Break challenges.
7. Mercurial Drift (Multiplayer Mastery 1): get 10 kills in a match, 250 times.

Requirements from the official Call of Duty blog: Modern Warfare 4 progression and Prestige. See every endgame camo on the MW4 Mastery camos page.