Through this walkthrough, some of my units have been upgraded to HQ7, but Leia, who is arguably more important campaign unit, is still HQ6.
Roolan's Wrath - Mission 13 (3 Stars)
http://youtu.be/YKEry7olBWw
Roolan's Wrath - Mission 14 (3 Stars)
http://youtu.be/JwuWSgwAgu4
Roolan's Wrath - Mission 15 (3 Stars)
http://youtu.be/ZNID05dV4Ow