Yeah I noticed this back when Skitarii launched. A few times back when lobbies were almost exclusively Skitarii, I’d play Hive Scum and she’d call-out about an Arbitrator’s performance despite there not being any around.
Yes they absolutely do. I think the devs used some of the original classes as templates when coding for DLC classes, that’s what causes characters misname their teammates.
Not sure but there was someone i played with that supposedly had a mod and played a bunch of “vacuum capsule” and other lines. So it might be that, or some bugs. Hard to say. Somewhat harmless but stupid.