The Modern Warfare 2 Polyatomic camo is unlocked per weapon, and if you want to essentially complete multiplayer, getting this will be your main goal ...

In need of a lot of Polyatomic Ion Particles in The First Descendant? This is how to get your hands on a lot of it.

Some of the rarest of weapon camos, several Modern Warfare 2 Polyatomic camos have been unlocked by one dedicated streamer who's going for Orion next ...

This guide will explain how the new Camo Mastery System works and unlock all the Mastery Camos in Call of Duty: Modern Warfare 2.