among the items were infrared binoculars with smashed lenses , rope ladders with their rungs severed , grappling hooks without points , underwater oxygen tanks with holes drilled in the cylinders ; flamethrowers , their nozzles crushed together guaranteeing instant incineration to whoever operated them and anyone within thirty yards ; rocket missile launchers without detonating caps , and again , as ahmat had projected , landing craft held up to show where the seams had been split , all of which threw the manic crowd into paroxysms of rage over the betrayal .