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Regarded as foundational units, marines compose the bulk of most terran front-line forces, ranging from officially government-sanctioned units, local militias, and private security firms, to pirates, renegades and mercenaries. Koprulu sector marines are generally equipped with powered armor suits and rapid-fire C-14 rifles. The suit provides full life-support and NBC protection, allowing marines to deploy into environments that would otherwise be inimical to human life. Massed marines form a flexible and highly effective fighting force for both offensive and defensive operations against both ground and air targets.