Now that the Stormtrooper has been released in a troop builder pack it has revived my hopes of someday creating an Emperor's arrival diorama. One question though, what were all the different types of Imperial troops/droids in the scene?

I have been able to pick out:

Stormtroopers (obviously)
Scout Troopers
Imperial Officer (Black Uniform)
Imperial Officer (Olive Uniform)
R2 Units
Probe Droid
Emperor's Guards
Death Star Troopers

Are there Techs in the background or AT-ST drivers or both?
Are there Tie Pilots?

Of the characters in that scene the only ones that haven't been produced are the olive uniformed officers and Moff Jerjerrod, correct?

So what's missing from this list?