Turn A Campaign

A few weeks before the start of the first session, the local miners guild finds something interesting, but their crude excavation methods have inadvertently activated a beacon of some sort. With Earth having signed a treaty to bury ancient weapons in exchange for peace, the people living on the moon are led to believe that the Earth is breaking said treaty. The players are in the right place at the right time for the scout mecha(s) to arrive, which in turn activates the old weapons systems, and a collapsing cave system puts them in the same chamber as the newly awakened Earth Mecha.