That’s a reasonable assumption. I’d make it myself if not for Armsmaster himself pointing out that he doesn’t think Leviathan understands a word of what he’s saying. Not even that Leviathan doesn’t understand the tech lingo (which would make sense – Leviathan isn’t exactly a regular member of society), he straight up says he doesn’t think Leviathan understands English.
Granted, he could be aiming to intimidate simply by way of his tone of voice.
(Also worth noting: It’s still unclear whether Leviathan even has a sense of hearing.)