Smaller, lighter, and faster then their bigger brother the Hybrid Tank, the Type M3A1 vehicles were essential. Leading the pack they were able to quickly set up attacking positions against the Kilaak base at Mt. Fuji. Lifting their piston arm, the man made machines fired their dart like accurate rockets into the mountains side; tearing away the rock in hopes of revealing the cloaked base. However, time would not permit such an act, as Godzilla and Anguirus quickly laid siege to the attacking forces, calling for humanity to withdraw their efforts.