Now that the Steam achievements system is finally in place, it's healthy to light up some achievements in revolutionary works.
About the design idea of the achievement icon, I can only say how Plain and unadorned abolitionists are, abolitionists at that time did not have any badges, MEDALS and other things, do not believe you can check it. The later Revolutionary War armies had MEDALS, insignia and, of course, ranks. No one had ever made a game in this genre before, so it was hard to design from scratch.
ps: It looks just like the picture (the icon is tentative).
Note: In order to test the achievement system, a lot of content ready for the next update is only half done, and the map in the game will be misaligned, but it will not affect the normal process. The next update will do that.
Torian