>>1925859
I mentioned that this is the first part, where we're introduced to the concept and The Depth den, primarily the bond the First Human in years establishes with Connie, the Ghost.
In the end, something happens that changes things in Gardenview. Connie manages to escape after a big revelation, and in her search through an unknown world, she draws too much attention in her way to find some particular person.

I hadn't thought about the former employees, since from what I've seen, none of them seem to have any experience with firearms or military tactics.
But I honestly find your idea very interesting for the development of Part 2.