Auto-translated
This isn't the only, or even the biggest, problem with the designs in Olden Era, but this also made me facepalm. I have trouble with them, and I don't always understand the difference between a "greened" and "ungreened" unit, even in Heroes 6 and, God forgive me, Heroes 7, this wasn't such a problem.
The designers of Olden Era would be like: