So very true. When I first started painting my aircraft I had to include decal roundels for the players to distinguish the pieces from one another. My naval units are painted mostly with a color scheme for playability except for the capital ships like the Carriers and popular Battleships. All of them have a decal or flag to show which nation they belong too. I actually replaced the OOB British Cruisers because I thought they looked too close in size with the destroyers. I ended up replacing with some ships I found on Shapeways. The biggest problem I had with naval units is that they can exist in the same seazone with enemy pieces unlike land territories. Because of this I decided to keep the subs, destroyers, cruisers and non unique battleships following a color scheme. There are so many colors in the spectrum though we should be able to come up with a solution that will make them look more historical yet keep the pattern or color scheme for the nation. I really would love to paint all the ships historically and maybe I will revisit them again someday. Every time I go back and repaint my pieces I seem to get better at it. Or at least I think I do, hehe.