I liked the Clone Wars storyline about Cut Lawquane. With an army of millions of clones who the Kaminoans said were taught to think creatively, that some would turn (like in the first season) or that others might desert. But I also had the same thought - how would the Bad Batch know about him?
I also like the idea of Omega. I could tell early on that she was almost certainly a clone. The accent alone seemed like a bit of a giveaway. Besides, the Kaminoans made the members of the Bad Batch different from the "regs" with genetic modification. Making a female clone would just be a matter of changing a couple of chromosomes, so why not? Plus she seems to have other skills, too.
It's also interesting to see the introduction of the chain codes, as well as the starship registration. Those are nice nods to plot elements that came up in The Mandalorian, but they were introduced in a way that seemed relevant to this story. And I'm guessing that the Imperial officer in the hologram who was talking about the codes is Vice Admiral Rampart.