I'll update with some ingame screens, np..

I have tried to use faction color to some level. You should be able to see the diffrence between your and other's unit's in a fight. Some special unit's will use the same skin, every unit i make for the vikings will have some traces of the faction color. These unit's are Norwegian, and have diffrent degrees of red in their cloth and shields.

Every unit will allso have their own uniqe shield design for each faction.

-Skel-