Allies will be able to build the spy in version 1.16. After infiltrating a structure it will reveal information that's relevant to that structure: -For factories it reveals which unit or structure is being produced by that factory. -For refineries and silos it will reveal the amount of resources that are stored in that particular refinery or silo. -For power plants it reveals how much power the player has in total, as well as how much is being drained. -For radars it will reveal (and keep revealing) shroud around any unit of the player whose radar you infiltrated.