I'm not intimately familiar with it, but I do go through there several times a year. The towns near Fort Campbell can be pretty sprawling, but it's easy to get away from that. Typical military city: roads to nowhere, inexplicable traffic jams at odd times, lots of concrete, etc. I avoid all that.
Good hunting and fishing (especially fishing) because you're right near some great reservoirs and rivers and forests. Tennessee is not far away, and it's a pretty part of that state, also with good hunting and fishing. I tend to avoid Illinois whenever possible, but the big trap shooting competition in is there. Lots of transition from farm land to forest to city so you'll have a lot of options to pick from. The Mammoth Cave area is really nice. Nice people generally. Not a bad place for an outdoorsman. This winter got a decent amount of snow, but it doesn't stay too long, so you have a nice long fall and spring. Typical southern US in summer: Hot and humid mid-June thru Mid-September.