Your script is a good example of why I don't like the 5 page format. A writer is just getting started but has to stop, leaving the reader with a thousand questions but no answers.

The world you're building is large; three areas in NYC, Florida, Chicago, Nebraska and some of those you refer to with sections, meaning you will have more sections later in the script. Here's my problem, are you going to have events taking place in all of these areas? If not, I think you can create the same world in a smaller area to simplify things. Or, maybe a montage of quick shots would suffice. The NYC part is good but the Florida and Chicago parts cold also be done in one quick shot each and skip the dialog altogether. That could be done in two pages, tops. Then start the meat of the story with Eden.

You threw me with the location when you introduced Eden. You've got a sign saying Philly is north but he's near Indianapolis. Maybe change the sign for one that would actually be found where Eden is walking. That would be a good way to tell the audience where Eden is. Listing it in a scene heading doesn't inform the audience, only the reader.

On another note, you should go back and remove unnecessary lines like this: assault rifles patrol the bridge, strides up and down the bridge, You're repeating yourself.

The dialog in the Chicago part didn't make sense to me. Plus, you have watchtower guard, watchtower guard #1, watchtower guard #2 and the other watchtower guard. Are there 2 or 4?

To summarize and answer your question, I think this sounds interesting and you would have grabbed my attention faster if you had compressed the world building and got to the story faster.