I always thought it would be cool to update the cavalry concept with a force of soldiers on dirt bikes. Talk about ability to maneuver! It would be hard to shoot and ride, so I'd build in a machine gun that fired from the handlebars with the push of a button, the way the planes do in dogfights. If you think these vehicles can get into difficult terrain, wait til you see a bunch of crazy grunts on dirt bikes.
Plus, it would just be cool to shoot a jihadi, then roost all over him as you drive on to the next target.
Heh... might not be a bad idea. Yah, kinda tough to shoot while mounted but maybe a look and point grenade launcher could buy a little time to find cover? Or network with an overhead UAV?
Though in Afghanistan there's also something to be said for just getting some horses and mules. I believe the Special Forces have done some of that already.