The Er'stacian walker's weaponry was operated by a crew of two Er'stacian soldiers.
This particular type of walker saw usage by both warring clans, and rival clans. These clans were engaged in a conflict on the planet of Er'stacia, which occured at some point between 22 and 19 BBY. These walkers featured a mostly spherical design, with two Er'stacian soldiers positioned on the upper section, controlling sizable firearms. Numerous cannons extended from the sides of the walker, which moved using five legs.