I love this idea! I had thought that it might be interesting to get intel when getting a spy into a land base, but I had just thought maybe something like the amount of cash, or a reveal of their full fog of war range. Treaties is a really good one!
I’m not sure if a fringe base, or front line would know the whole fog of war, but if it was in your true capital it that would be an interesting perk. In my head I think of Bond vs cracking the Enigma Code, and what intel a spy can gather. Just my two cents. Oh and if you bring back the radar for sea bases the spy in that base would get that bases intel? Maybe..
