Been a bit busy lately and haven’t had time to watch any more yet, but I love the idea of how you’re restructuring “The 501st”! My guess would be to include at least part of the first training session, and then do the second later on. It may run a little longer, but I feel like that will be better context for the audience. Rather than just watching and thinking, “Well, they say they’re bad, but they can’t be that bad, right? Oh no, they actually are,” if we start with them messing up, it adds legitimacy to their in-fighting. Classic “show-don’t-tell” mentality.
If you’re trying to cut down on Act 1 more, perhaps just cut the scene with Lama Su entirely? It’s more important for the context of the war at large (“Wowzers, we’re sure making a lot of clones!”) than for anything pertaining to the actual Domino Squad, since clearly they’re not deficient.
Seriously can’t wait to watch it!