Well, he does have a Republic/Senate (Think of the staff that Valorrum came with) logo on his shoulder, I guess to denote his station. I find it interesting I guess that the "Shocktrooper" evolved from a special branch of Clones who protected VIP (Very Immense Penises), political, and other important people on Coruscant... And sorta became Palpatine's personal goons then.
They kind of remind me (and maybe this is why I find them more interesting than they are?) of "soldiers" the Nazis used to protect important people, etc. It's a strange/interesting parallel I guess.
I'm also having some fun seeing how this EU is evolving. It's really witnessing some expansion of the movies taking place... The "Shocktrooper" legion wasn't always who we saw in the armor we saw in E3. They came from somewhere, and maybe were some of the first Clones to adopt a color like that even?
I'm not even buying the animated stuff, but I'm really sorta hoping (I know, lame) we see some of these realistic someday. I'd buy a little group of this guy in a realistic sculpt.