There are a bunch of interesting ideas in here that could be used to craft a few fun sessions with the right group. Unfortunately, it starts with implanted bombs that go off of players don't follow the rails. The first threat is a group of hospitals each with 4 armor/double digit health/1d6+4 damage, even one of which is most likely a TPK for new FIST characters. The text is in very long page-wide paragraphs, one a page and a half long, written in a stream of consciousness manner that switches tenses around, making it really hard to initially parse and later re- find information.
For all my above gripping, there's a lot of good material for inspiration in here! The bookended twists, the creepy office with Pam from Accounting acting like a rabid Necron hybrid, the oppressive atmosphere of the city ... If the author spent time tidying up the text and adjusting the mechanics of the threats they'd have something others could easily use to kick off their campaigns with killer first sessions.
My favorite part is how the twist ending is hinted at throughout without ever being super obvious at the time.