I've worked for several of the major defense contractors in my career. In the two years I worked for Leidos I can honestly say by far it was the worst experience ever. There were 5 layoffs in my time there, no training on their systems, no body was ever happy, and I worked with one guy that had been laid off 3 times by SAIC and Leidos. Trust me, the grass is always greener where there was no grass.
Totally agree laid off 7 months ago when they decided what I do is nonstrategic. It's curious that one of my projects is still featured on their homepage. Glad to be done with them and glad most of the office I worked in has quit and moved on.