"Attention!" Fan Guowen threw aside his gentle disguise and roared ferociously. Holding a Czech light machine gun in his hand, he fired two shots into the sky. Then the muzzle of the gun, emitting smoke of gunpowder, went straight to the foreheads of the two recruits: "Stand up straight!"! Don't get down! The two recruits, who had never seen such a situation before, almost looked like ghosts...