And while there's no evidence that it will ever be deployed, Russia is, in fact, home to a gun-wielding ground drone. The MRK-27 BT, built by the Moscow Bauman Technical University and first unveiled in 2009, is a tracked weapon platform, armed with a machine gun and paired grenade launchers and flame throwers. Most likely, it will go the way of MAARS, SWORDS, MULE, and other imposing ground combat bots—which is to say, nowhere. So far, the Teletank is an anomaly among robotic weapons, a precursor with no real descendants. Or none, luckily, with any confirmed kills.