"They resemble the Gungan theater shields in Episode I. That's the one and only time we've ever seen such shields used in Star Wars that I know of."
Well in ESB the Rebels get a shield generator up before the Imperials arrive and vader is annoyed because he can't simply bomb/bombard the base, and is forced to order a ground assault, so we can assume this shield generator works in the same way, though much larger and more powerful..
I think I posted about this yonks ago.. I'm really glad they decided to do it this way as it's far superior to the old "give shields to all units within the radius"
I wonder if the Gungan natives will have fambaa shield generators.. they could be put to really good use in this game..
"Your life does flash before your eyes before you die..... the process is called LIVING"