I would really suggest that you try to fit in the new Palpatine. Vader Unleashed, by himself isn't very feasible with out a force battery. It takes a long time to get that much force just to pull of 40 dmg. So heres what Palps can do:
-New Palps= 40 auto damage with Vader, Unleashed, per turn.
-All your troops can reroll their attaack rolls and saves.
-Easy gambit points from turn #1 and also a fairly respectable damage dealer with good def against shooters.
And if you have Thrawn, you could have Vader doing 60 dmg for a lot of turns. I know missles 30 is great and all, and if the opponent fails the save, they will hurt alot, but I'd take out 1 or 2 and put in some regular troops, or if you want to be Yobuck safe, replace the Shock Troops with more Kel Dors.
If you are looking for a squad idea with Vader Unleashed, put him with the New Palps, Nyna Calixte or Mithrawndu, and a bunch of stealthy troops and watch enemy SS squads get destroyed (yes Rebels this means you!).