So I've been doing a little research on star destroyers as I hope we do successfully implement another design or two into our battle. Here's some interesting info on the communications ship, which seems to be featured in the battle from a distance at least:
http://www.theforce.net/swtc/dagger.html#commship
http://starwars.wikia.com/wiki/Main_communications_ship
The communications ship was the vessel jamming the Rebels. How else would they know the shield was down without having disabled the jamming in some way? It makes sense to me. I didn't include any sort of attack on the communications vessel in this rough edit because I wasn't sure I liked how I did my little script and was trying to hurry and get everything done. However, I do think this would be a valuable inclusion to the battle.
Also, thinking about Coruscant with all this discussion, I'm starting to wonder if there is some way to include it. Problem is it doesn't seem logical for the Death Star to be anywhere nearby, and I don't think it would be realistic or suspenseful enough to set Coruscant as the center stage. I'm wondering if there is some other way to give it more screen time or inclusion...