when I apply for a Civ nuclear plant are they going to view that as termination from job due to failed FFD?
That is
exactly what the utilities will see and yes, it will hurt your eligibility. Generally, most, if not pretty much all, utilities these days will straight-up not hire or grant site access to someone with anything less than a full Honorable military discharge (with no misconduct record) as well. The job market is too tight for them to take a chance on a guy with a checkered past when they can very easily get someone who doesn't have any of that.
While I know better than to say that it's totally impossible, I wouldn't get my hopes up if I were you.
