the mossad 's agents in the baaka valley forwarded a list of the currently most favoured merchandise , including the usual crates of repeating weapons , hand grenades , time-fused explosives , black pvc landing craft , long-range underwater tank and demolition accoutrements and assorted training and assault equipment , such as grappling hooks , heavy ropes and rope ladders , infrared binoculars , electronic mortars , flamethrowers and anti-aircraft rocket missiles .