Contrary to what Rachel says, shooting at a Jumpship is not a violation of the Ares Conventions; it was simply an unwritten rule followed after the First Succession War to keep space travel from becoming impossible for everyone.
When Stiener Ejects he says (seemingly to himself) "Whatever you are It's gonna take a lot more than that to conquer
summerset" to which Nicholai Answers. Is he on a communication chanel with
the clan in the escape pod?
(as the Katana is being attacked)
Adam: Time to choose sides, Captain-san. Are you with us or not?
Fredstat: I am rather partial to surviving…
(after the jump to the Hamilton system)
Rachel: Ugh… I think I left my stomach behind.
(while slapping cuffs on Captain Fredstat)
Hawkins: Ohayou, Captain. And please… enjoy your stay in the Federated Commonwealth.
(Hawkins is leading a boarding action against a Draconis Combine smuggling ship)
Zack Hawkins: Konichi-wa, Kurita creeps!
(after Kylie has been slaughtered in a simulator battle)
Kiely: Guess I didn't pass, huh Major Stiener?
Adam Stiener: How can I pass you if you don't stay alive, Kiely?
Nicolai Malthus: You dare to refuse my batchall?!
Andrew Steiner: Refuse your what?