A mod that will add the Tau as a playable race into the game!
One of the wargear options for the Tau Commanders will be an Advanced Drone Controller, and while it doesn't help the commander at all, it lets nearby drones use additional abilities. In the beginning of the video you can see the ability is greyed out, but when I buy the upgrade and walk near the drones, they glow blue (meaning they are in range of the controller) and the ability unlocks!