Some very good ideas here.
He is also frustrated by the incompetence and idiocy of the army-men under his command. One time, after they lose a battle they should have won, he starts to force-choke a lieutenant in anger. Obi-wan is alarmed by this and makes Anakin stop. Anakin apologizes, but he’s still angry.
The only thing I might want to clarify, or—if this isn’t what you meant originally—change slightly; is that Anakin doesn’t force-choke any Clones. He only force-chokes an incompetent Republic lieutenant (not a clone lieutenant), and partly because their poor tactics led to an overwhelming loss of Clones. I like the angle that Anakin, and by extension, Vader; is loyal to and respects his soldiers.