With respect, I don't see the point. If you don't like Rebels in the Imperial staging area, it's far more simple to make it an Anti-Base Camping zone, which injures and kills enemies that enter it. I've asked the devs about this, though, and it's most likely not going to happen.
"One of the bitches actually gave birth while she was attacking, and her puppies joined in on the carnage."
--the awesomeness that is Boatmurdered.