Someones been playing to much Battletech. I dare you to try and climb on a moving car, even a slow one, and plant a bomb on it. Now give that car mounted guns to shoot you before you get there. Not only that, look what modern infantry weapons can do to modern tanks. Hell, look what modern tanks can do to modern tanks! A T-80 and M-1 could go at it all day and neither would knock the other out. And you'll notice the Tomahawk has both a forward and rear mounted sensor package. Oh, and a LOT of anti infantry weapons. A pair of .50's, pair of 25mm cannons (if you want to be mean), and a pair of flamethrowers (if you want to be evil). Not something you want to go toe to toe with. It looks like the Tomahawk and Spartan where designed to totally overpower human infantry, and I'm pretty sure it's a cold day in hell when human resistence manages to take one down.