Fu Huai'an had said previously that Qin Zhe had the capability to vanish from the plane quietly.
Fu Huai'an saw it just now, but he didn't stop Qin Zhe because he didn't want Naseer's men to discover him.
Qin Zhe was a soldier, so it was only right that he accomplished his mission…
While Fu Huai'an wanted to save him on account of their camaraderie, as a soldier, he first had to ensure the successful accomplishment of the mission, not his own life.
It was much harder accomplishing such a mission away from the troops than it was to do it in an aboveboard fashion. Qin Zhe had watched as Feng Yang died; after breaking down, he very quickly pulled himself up. He knew what his goal was, and he was willing to sacrifice his life to accomplish it, even if… Fu Huai'an had made things so clear to him.