It's clear that Broken Blade's loyalty to Teng Yun Geshang is nowhere near as steadfast as Fei Peilie's devotion. After all, he had been with Konstantin before, and it was only through painstaking efforts that Teng Yun Geshang managed to win him over in the end.
So, now that Broken Blade has finally found a better life and escaped from Konstantin's shadow, he has no desire to throw himself into danger again.
For some reason, even though the operation hasn't yet begun, Broken Blade seems to have already concluded that this plan is doomed to fail.
On Fei Peilie's side, he seems to have noticed Broken Blade's extreme mood and couldn't help but ask, "What on earth is wrong with you? Do you really believe that even with everything Umbrella has at its disposal, we can't kill Ning Fan?"