It's not a wheeling rig, its a "prototype" vehicle to bid on government contracts for a multi terrain vehicle. A bunch of off-road shops and off road vehicle manufacturers have built similar vehicles. (I had assumed you watched the video)
just type "special forces off road vehicle" or "border patrol off road" into google image search and you'll see everything from 4 wheelers, to RZRs, to rock buggies, to sand rails drenched in flat tan paint with guns sticking out of em.
I was surprised that they were based out of Cookeville. I had no idea they existed and just drove by their location a few weekends ago.