This might not be the forum to ask this but I'm interested to know how the AI decides which unit it builds as well as how it uses some units. Now, the Caravel is a very good all purpose unit and I can see that being a good unit for the AI to handle. The problem is I'm thinking of adding a Galleas unit (stronger than Caravel but must stick to the coast and slightly more expensive) Given the choice, which one would the AI build and under which circumstances? Would the AI stop building Caravels and only build these new coastal ships - thereby perhaps handicapping itself? Also, is it a bad idea to have coastal-only ships set with Escort AI this late in the game when the AI has seafaring transports?