Urban areas continue to vex the US military as tall buildings and narrow streets keep impeding troop communications and tactics. While ground soldiers have used single drones for years, DARPA believes that a whole swarm could mitigate those disadvantages, giving units more eyes and guns. Since the military is currently unable to control such swarms, DARPA is launching a new program to develop both drone-wrangling tech and the tactics they'd need to assist soldiers in urban environments. Oh, and they want video gamers to playtest the best strategies. The program, called OFFensive Swarm-Enabled Tactics (OFFSET), aims to produce over a hundred tactics to be used by systems of over a hundred unmanned air and/or ground drones.