Can you make the trade units for different classes too?, Europe(Ottomans included) could use horses and donkeys, Arabians and Persia have camels, South Asia could have water buffaloes along with south east Asia( Indonesia, Siam). China, Korea and Japan could have horses and donkeys too, but should look different than Europes. The African civs could have.... Elephants?!, I think you can figure that out, and imo, the Incas(only, except the modded andean civs) could have llamas. I don't know about trade ships much except that asia should have junks and europe should have what they have ingame right now, carthage could have a more mercantile looking trireme( also sukritact's Phoenicia) , same with greece, byzantium and rome, basically the ancient Mediterranean civs.