On the topic of the scout, I actually thought about its possible upgrade (explorer) today in my game. I'm on a pangea map, and the only coastal city I have goes into a small, ice locked sea. So I know nothign of the vast sea outside my territory, and would like to know if there is decent island to settle out there. So I thought Explorers would come around the time of the caravel, maybe a little after. They would keep the scouts LOS even when at sea, but still have low combat, no bombardment (obviously), and not be as fast as the caravel, that way they don't totally replace them. It would sort of be a caravel/scout hybrid and come just in time to scout the new world As for a scout militray path, it would certainly be welcome but isn't needed. Cavalry and Lancers already have the visibilty upgrade, which helps with military scouting. I think if the Skirmisher was to be mounted (which makes sense) it should be (depending on the time it comes into play) either a Javelin cavalry in the classical/early medieval era, or a Dragoon like cavalry around the time of lancers (pistol cavalry) I like the idea of Drons/UAV but I wonder how they should be implimented. Air recon unit? Air bombardment unit? 'helicopter like unit", in that its airborne but follows the ground? Cruise missle like?