Anyways, they'd be kinda cool if it weren't for the fact that they're shooting people. Perhaps if we fought against robots.
I have a feeling that's how wars will be fought in the near future. Drones are the first step, and robots are just about a decade from being perfected. I think robotic suits will come first however, with a human inside an impenetrable titanium shell controlled by a computer - Or something along those lines. As Roy mentioned, like the Terminator trilogy (They even created a plastic that can automatically repair itself recently).