When it comes to all that action and killing, it's shocking that none of the Joes have gone off the deep end. Outback comes close, however.
Outback is a survival-training instructor and a total Spartan. Basically, if you need someone to make it in harsh terrain and with almost nothing to go on, Outback is your man. But even his fellow Joes wonder about his sanity. These new movies could use a wacko. With a little tweaking, Outback could supply them with that wacko.