http://www.polaris.com/en-us/military/combat/mrzr-4

The Ultra Light Combat Vehicle, or ULCV, is making a big appearance of recent, proving that a mobile, small, smart military is becoming more important, and key to a number of operations. It would fit in Tanoa quite well given the fact that small yet rugged ULCV's are very capable of holding a squad of 4 or more depending on the load, and can travel through rough and tedious environments, such as bad-lands with rocks and lots of obstacles, and even in jungle environments. They're easily transportable, by air, and by sea, even by Medium Helicopters, making them flexible, reliable, and more capable than Quad-bikes.