This was a good example of how to do episodic storytelling that still advances an ongoing story arc. Each stage of Crosshair's character arc has been in a separate episode, complete in itself and efficiently told. It underlines that episodic and serial storytelling are not all-or-nothing opposites, but ingredients that work best in balance.
Mixed feelings about Crosshair shooting the lieutenant. On the one hand, it felt like too big a jump. Given that his mantra has been to follow orders no matter what, I would've thought his first act of defiance would have been subtler, like disobeying the order to get back to work and instead carrying Mayday's body inside so the space vultures wouldn't get it. On the other hand, being a sniper is pretty much his entire identity, the thing he's named after, so it makes sense that his go-to response would be to shoot someone.
Anyway, Crispin Freeman has a really distinctive voice. I recognized him as the lieutenant despite the haughty English accent. Speaking of accents, it's interesting that the doctor at the end, Emerie Karr, has the same New Zealand accent as the clones (it's Keisha Castle-Hughes doing the voice). I often wonder how they ended up with that accent, since accents aren't genetic, and it's not like every one of them was personally raised by Jango Fett. Presumably whoever raised them and taught them to speak had a Space New Zealand accent, and I wonder if Karr has some connection to that.