Is it just me, or does the enemy never use naval power to any advantage? I've played two long games to completion on Noble setting right now, and the only real ship usage I've seen is when the enemy uses a transport to drop off some units on my continent. Whenever I attack an enemy city or bombard it from the sea, they just keep their ships sentried or fortified in their cities. Sometimes they will have 3-4 destroyers and a battle ship inside the city doing nothing and I'll be bombarding it with only one destroyer! Never have I been attacked. Kind of takes the fun and challenge out of naval warfare. Has anyone else noticed this? Maybe I just need to play at a higher difficulty level?