from a needle, a paper clip or a fish hook to anything big and large - pistols and/or shotguns; bigger and larger - standard rifles and/or shoulder-mounted launchers or larger and bigger - vehicle-mounted rockets and missiles; every weapon systems has to go through real-life application of its effectiveness on its intent target. now having said that, China has never fought any international war, none whatsoever, but they are currently tiptoeing around the China-Taiwan issue and the South-China sea. we have yet to see the outcome. no corrupted government produces positive results in war as far as the history goes!