Also most of the time armies had almost no uniform. Take english longbowmen. Many would wear either a tunic with your lords colors. A mail coat taken from the dead. Quilted cloth (western version of greek composite) a pretty leather jacket. Many wouldn't have boots or helmets. In movies and videos uniform was shown. Uniform was expensive and impractical for men who are gonna die. The romans and greens are by far the first users of uniform mostly because its intimidating and a morale boost. Also ninja, samurai, saracens, russians, mongols, a tank of a horse, conquistadores, the flamberge, turks, norsemen and danes. I don't see a problem here its only like 8 or 9 items that are easily found in roman mods. I mean honestly you arnt really gonna make a difference from theme.