 General Ludwig <unk> 's <unk> Corps would conduct the actual attack on the Rock . The assault forces would comprise the Infantry Regiment <unk> , the <unk> Regiment of the 1st Mountain Division , 26 medium and heavy artillery battalions , three observation battalions , three engineer battalions , two smoke battalions , a detachment of 150 <unk> , and up to 150 miniature remote controlled demolition vehicles ( <unk> ) , packed with high explosives . 
