The Anti-Entropic Rotary Cannon, or AERC, is a mounted gatling gun with barrels constructed out of [[Inverse Entropic Metal]] by the [[EM Project]] team of [[G-Section]]. This provides it with the ability to provide sustained firepower without overheating. The thermal regulator device that controls the interaction with the IEM is flawed however, after 30 seconds of sustained fire frost started to coat the barrel and after 60 seconds of sustained fire the barrel and internal mechanisms of the gun become entirely blocked with ice. It takes several hours and specialized equipment to unjam the gun after this happens.