I think it will be cool and easy for devs to add drons or UAV which will observe an area and make enemy visible on map.
Like the Clieric, it should fly around for some time, but instead of fireing enemy it will reveal not covered enemy positions on the map.
It will be really helpful for Insurgents, because they don't have such powerful weapon as Helicopters and Warlock for Security, but they can use drones so it fits.
Upovote please if you agree, so maybe devs will see it.