The Royal Marines operate the waterproofed version for amphibious assaults. Fitted with a 'periscope' snorkel, waterproofed electrical systems and instruments, and prepared with grease and graphite lubricant on practically every moving part, these versions can run with the entire vehicle submerged if needed. The tailgate is held open by struts to allow water into the vehicle to prevent it floating away, and to allow water to rapidly drain after reaching the shore. In training exercises the vehicles are operated in depths so that the driver's head and shoulders are clear of the water.