Is this RP-correct/acceptable?

[tfmachad]

Sounds fine to me, Fletcher. The RM was correct in his stance, but I would think it would be better to have more of a superior attitude from a cruiser...

The BH kept his mouth shut?

From any RM officer, in fact. This is the way I see this conversation would really go on about:

"This is Rheinland Cruiser to Order pilot, state your intentions or be destroyed"

"This is Rheinland Cruiser <name>/This is the Rheinland Military to Order ship <name optional>. State intentions in Rheinland territory."

"I am on a mission that will benefit both our factions without us engaging combat, I will however need to get to Sigma-13, to carry this out"

Now, RM doesn't really like cryptic talk. If there was a secret mission to be carried out with the blessing of the Military the Cruiser Captain would either know about it or be diverted elsewhere by his command.
"And what exactly are the terms of that "mission", sir?"
And from then on you'd either come clean and really say what you're about to do or be implicated.

So you should either lie about it/not mention it, or be ready to answer questions. Let's say you don't mention it.
"I merely seek passage to Sigma-13, sir."

"Very well, but if I hear a hint of trouble, I will bring my Cruiser in for a stroll"

"Very well then, mein Herr. You may carry on."

"Roger, over and out"

I take the whole thing happened either in New Berlin or Frankfurt, right? You wouldn't find an RM ship in Sigma-13.

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