Armored Core
It's been 20 years since the Earth Government and the Corporations battled for supremacy. The majority of humanity lives beneath the surface of the planet, relatively safe from the continuing struggle. A new and mysterious entity has entered the picutre, however, snapping up all the available Ravens for intense missions that only their custom-built Armored Core Units can handle. As a Raven, you know there's always another mission waiting for you - does it really matter who, or what, hires you? For all the new parts and weapons out there for you to earn in battle - we didn't think so. But just the same, keep your back covered, Raven.