After a round of scolding, Huang Dazhi finally let someone come in and drive all those doctors and hospital directors out. A few privates didn't heed his orders and were still confronting Huang Dazhi and his team. They were soldiers and only took orders from their own captain; commands from anyone else were invalid.
In the end, after being persuaded by Huang Dazhi, and with the assurance that they would not torture Chen Feng, the reluctant privates finally left the interrogation room. They stood at both sides of the door outside, as if on guard for the interrogation room.