I went last year.
Lots of reenactors. Tents and equipment set ups. More than just the usual stuff. One was a working mobile field kitchen that was interesting. They were actually cooking breakfast for the reenactors. Another was a field office with desk, typewriters, etc. Also, a display showcasing women's wartime duties. All the folks behind the set ups were more than happy to talk about and show off the equipment.
A bunch of military vehicles and vehicle parts vendors set up. They did a "parade" of vehicles while we were there, mostly jeeps but other stuff mixed in as well.
There was a line of maybe 5 or 6 machineguns doing demos firing blanks. You could pay a fee and get behind one for at least the experience of the noise.
There was a Huey helicopter that you could take a flight on. Can't remember the exact price but it was over $100. Minimum age to fly is 5. I had my 4-year-old grandson with me so missed out on that. I do plan to try again this year.
The gun show was the usual Six Shooters affair. No real military stuff to speak of.