http://www.myfoxny.com/dpp/news/darpa-cheetah-robot-can-run-faster-than-you-dpgoha-20120306

"The website reported that DARPA has not yet revealed what the robot will be used for. Along with its eventual high speeds, the device could be designed so it can zigzag to chase and evade. It could be used for emergency response, firefighting, advanced agriculture and vehicular travel."

So it has no military combat applications whatsoever.........

since there modeling after a cheetah maybe they will have it bite there enemies 
equipping one of those with an AI, a pair of machine guns, a tracking system, facial recognition, and razor sharp claws and teeth could be pretty deadly if it can get its speed up to 60 mph like the cheetah. I just hope they don't make it a drone, droid is better