On the train

Xerros-926 nodded. It was indeed the most logical solution.

"Cautionary: When interacting with the scavenger, I must take the lead. Explanation: My contact within the Adeptus Mechanicus was under the impression that I was conducting a study into the technology of the underhive, and it would be... unfortunate if he was disabused of this idea. Conclusion: Thus, for the purposes of our meeting with the scavenger, I am the leader of a Mechanicus-sanctioned expedition into the underhive, and you are my retinue of savants and muscle, provided by the Credit Guild. Reassurance: Following the meeting, we may return to our original tasking."

After disembarkation

Disembarking from the train, Xerros ignored the enforcers, stepping forwards to greet the slovenly pair.

"Affirmation: Yes, we are the representatives of the Credit Guild. Interrogative: What is your function?"