Capitol is the largest and most powerful of the megacorporations and, unlike its peers, the only true corporation, with power held in the hands of its shareholder citizens, as opposed to an aristocratic minority. For Capitol, the business of the corporation is business, and every shareholder has the opportunity to raise  themselves up to a position of power and prosperity - or at least that's what Capitol's media would have you believe. As the largest corporation, Capitol is constantly beset by encroaching competitors and has adopted the expensive, but effective, approach of maintaining the  largest armed forces in the system to deter their rivals and swiftly retaliate against those too stubborn to be deterred.

Capitol enters the conflicts of Warzone Eternal lead by the fearsome rogues of the Free Marines, the Sunset Strikers, stalwart soldiers who have adopted the customs of their Mishiman foes, and the daredevil assault troops of the Martian Banshees.