So we have seen it many times over. A movie (latest may have been The Avengers) with some kind of Earth invasion plot.
Several Earth invasion plots sucks. If not all.
In most movies I immediately recall, for some reason the aliens think it is a good idea to secure Manhattan. First. Why?
I do remember Independence Day as maybe having a more intelligent approach, but maybe those aliens only had greater numbers and could take Manhattan and downtown Seattle together with Kairo and Moscow and a bunch of other city centers. But still, why the city centers. How come downtown is so attractive to invasion forces?
Maybe I am on the wrong track, maybe making downtown's go splodey has a desired psychological effect from the invaders perspective, and they get to shoot out as many humans as possible in fewer blows?
I hereby name you Strategic Commander of an Earth Invasion force. Type down your strategic plan (or Oscar winning plot).
You "could" use HW related tech as reference. Njummie.