High tech weapons aboubd,, yes, but very few technicians to operate those weapon systems. A destroyers a nice place to hide, but operating a VLS system, or even a modern five inch gun is going to be a challenge without instruction, not to mention a lot of these systems have sat, unmaintained, and likley powerless for months at this point. Irwin and The Colony are a signifigant distence away from each other, and likley even from L.A. And the mallers don't have flight capabilities. While evacuation of a kniwn civilian population would likley be one of Col. Kimmit's primary functions, taking a fotress gaurded by ruthless men with signifigant firepower is something else entirely. Especially as the onlg way to get there and not lose half your assault force in the process is by air. And thats a lot of precious aviation fuel, and thats throwing a lot of men and women at a wall. While I imagine they'll be dealt with, neither side had the capability or supply line to mount a successful attack on the other.