25th Ultimate Battle Pack Crimson HISS
Operation Crimson Sabotage Canopy
When Cobra Commander asked Destro and MARS Industries to design and build him a cheap, lightweight, high speed tank to lead Cobra's forces into battle, Destro designed the HISS. Seeing the value of such a cheap fast tank, Destro also assembled a division of them for the Iron Grenadiers. Unlike Cobra, the Iron Grenadiers don't use the HISS as a main battle tank, but rather as an Anti-Infantry vehicle to provide support and extra fire power for the IG foot soldiers.