I do not see what those NPCs would be. Maybe it could be stupid Ewoks running around on Endor getting shot, but they would be mostly eye-candy as they are armed only with spears and rocks. Though, I would have liked to see hanggliders on rotational bundles fly over the map.
Oh, and it would be nice to have some fauna. It made Ground Control a bit more immersive to have wild birds circle over some areas of the map.
"One of the bitches actually gave birth while she was attacking, and her puppies joined in on the carnage."
--the awesomeness that is Boatmurdered.