The liberation of an entire planet is not very impressive to Nine, which is to say, this does not seem very likely. She may have a narrow sense of scope from her life migrating from prison to prison, but she has common sense. Nine levels him a doubtful look at this statement of intent.

But his intent doesn't really matter to her, does it. Nine would follow someone that accepted her as a person straight into hell without regret.

Her face lights up when it hits her, a painful scrap of optimism fighting its way to the surface. Nine promises without hesitation, "I'd take out anyone you told me to, Miles." Which is just the truth, and if his keepers think that doesn't include them, that's their own stupidity.