This place sort of expects you to put your head down and start a family.
Lots of the benefits don't kick into full gear until five years in, and the base is located in the middle of nowhere, Greenville. So unless you don't mind spending an average of half your day away from home, you'd best get yourself a little house in Greenville. Again, fine if you want that family life, but not for everyone.
Now, this next part is based purely on my personal experience, so I won't go too much into detail. All of this organization is great as long as you keep your head down, but stir anything up and they will cut you out in a second. HR is not there to help you, they are there to minimize damage to a company that works with weapons and the government (very high stakes stuff). If anything happens, their standard procedure is to have you escorted to your car by security (you are not allowed to pick up anything from your office), the first time it happened, I casually asked the guard if this happens often, and he told me I was the third today. It was 10am.
While you work there, keep records of everything, stay on top of who gives you what instructions, and be clear immediately if there are any conflicts in what you are told to do.