Flames of War: ISU Heavy SP Battery (Plastic) (SBX63)Includes five plastic ISU Assault Guns, one Decal Sheet and four Unit CardsThe role of the ISU 122 and ISU 152 is as direct fire artillery, closely following the advance to knock out enemy guns and dug in infantry. They can also fire bombardments at great ranges and are very effective tank killers. They are well protected against most anti tank guns and their thick top armour makes it hard for artillery fire or infantry anti tank grenades to damage