Getting back to the original question for a moment I believe with the new armour Hardox at 4mm plus, not many weapons even hydraulic will ever get through to do much damage to another robot. I am working on a linkage that will operate a 12lbs sledgehammer powered by a spring or bungee cord hitting a chisel that will drive into the armour of an opponent€™s robot but I don€™t think for one moment it can manage significant penetration into a material with a brinell hardness of over 400!!!