Well, as I say, having given you your objective, that has kinda 'cashed in' your help there.
But he will say, as you just mentioned it, that you can;t think about staying within the shield- frankly, once they are in the city it's just a matter of time, and not much time. You would do better to slow them in the jungle. That said, the city is probably the only place you can fight outright, but that's a desperate measure.
"Mind you," he adds, "I think you are making a pretty big assumption in thinking they will make a landing at all. An Osokan shield generator? Doesn't fill me with confidence. You wouldn't get me in that city for all the spice on Kessel. The Imperials will want the most direct solution they can find- and being in that city strikes me as being like sheltering from a meteorite storm with an umbrella.
Good luck with that."
He cuts contact.