What are Yue Jiajun's swords and ghosts carrying cavalry, and what is their tactical system?

The saber used by Yue Jiajun to chop the foot of Jin Jun.. Some Yue Jiajun hid in the deep ditch, and some Yue Jiajun led the nomads from the army to fight. Nomads from the army and his war horse are well protected by armor from head to toe, but there are only clues without real armor, so whenever the nomads from the army comes riding with sabers, Yue Jiajun cuts off the clues.

Ghost-backed cavalry is a person who cuts off the head of a nomadic horse after its leg is cut off. Nomads from the horse was cut off, can't fight, nomads from the horse when passing YueGuJun purposely cut off their heads, and only cut off their heads.

Is Qi Xin's concerted efforts. First attack the next three roads, and then kill them with one blow. This tactic continued to be used after the Ming Dynasty, because it was the most effective tactic except the strange knife team for the army with weak cavalry! !