I'm curious as to how Armor X interacts with multiple models in a unit. I think I know the answer, but I'm just looking for reassurance and clarification.

With weapon keywords, the X stacks (for instance, the use of impact grenades grants Impact 1 for each model in the unit tossing a grenade.) However, do unit keywords stack like that? Does a 4 model Super Battle Droid unit have Armor 4?

I think the answer is no, because the keyword is attached to a unit and not a weapon. For instance, Rebel Commandos have Sharpshooter 1, and that doesn't stack per model in the unit. The keyword applies to the entire unit and not each model. Is Armor X the same way for Super Battle Droids?

Thank you,

Robb

Armor X is a unit keyword, not a weapon keyword. So no matter how many minis the unit has, a unit with Armor 1 will always have Armor 1.