These people obviously didn't know that Wei Yongnan had received orders from Feng Guoxing to execute a task. And Feng Guoxing directly ordered him over the phone to follow Ye Qing's orders throughout.
For a soldier, the one giving orders is the superior. Wei Yongnan was a competent soldier, so he regarded Ye Qing as his superior, reported through a military salute, and everything was done as if reporting to a leader.
Ye Qing also returned the salute to Wei Yongnan. He had actually informed Wei Yongnan before coming to the Li Family, asking him to lead the troops to start the operation. However, the deployment needed by Wei Yongnan and his team took a little more time. Fortunately, just when the situation was about to get out of control, Wei Yongnan managed to bring the team over and control the scene.
