[Person says they got the job done, but one of your of men died in the process]

(Angry) What?! Robert's dead? Goddamnit!

Men! take this bastard down!

[Person says they're gonna hear your target out] [You allow them because they've been helpful in your mission]

(Cautious) (Keeping one eye open) Fine. I'm only allowing this because you've been helpful to our mission. (Threatening) But if I hear anything about you siding with them, you're dead.

[Person won't let you complete your mission]

(Defiant) What? We've come here to complete our mission and that's what we're going to do!
Maybe you're not getting it. Our mission is to erase everything that has to do with this sick project.
I understand what you're trying to do, but this cannot end peacefully. If you're going to stand in our way, we will take you down.

[Person agrees with you on exterminating the target]

(Laughs) I like your style. Let's do this!

[Person asks about the organization you work for]

The E.I.E? Well, it's short for "Expunging Impure Elements", we're a military organization that exterminates or deals with groups that are hostile to humanity.
Modifying the foundations of humanity and experimenting with people are things we stand against. Although, Ghouls and Super Mutants are exempt.