You can serve your country as a cop, game warden, small business owner or marine. The marines, as you know, have a pretty good college tuition gi bill. You will probably need a degree to move up as a cop and probably need a degree to become a game warden. The service as a marine would help you achieve a lot because you will learn discipline. Military service helps get you into civil service and especially law enforcement.
You could even be a seabee and learn a lot about construction, get a degree, and still run a business.
"You Can All Go to Hell, I'm Going to Texas." --Davy Crockett