Chaos Space Marines have most of the capabilities of regular Space Marines, though they also have Chaos abilities and gear that make them unique. Each of the four Chaos Gods have Chaos Space Marines devoted to their cult, be they Noise Marines in service of Slaanesh to Plague Marines in service of Nurgle. They can unleash untold horrors on their opponents, from Daemon Packs to Chaos Defilers. They can be organized in an infinite number of ways, which is appropriate because Chaos embodies disorder itself. In the end, Chaos Space Marine armies are feared opponents that are seen as highly unpredictable by those who fight them.