We've put thousands of miles on our truck driving on BLM and forest service roads out west. There are times it's gotten to rocky or rough and we've turned around. It's mainly a clearance thing. We are not out to beat our beloved truck up, but we're not staying on the pavement either.
For what you've described you will find plenty testimonials on here with photos showing that it's up for the task. I hope you have computer time to help clear your mind while you're in Iraq and that you get back to the states soon.