also since I brought up the colors figure here I might dive deeper into that even though really your characters would have less of a clue then you probably do.

Cryx: Asphxious's faction black/acid green
Cygnar: blue/gold steel armor usually is over/under it
Khador: black/red because for the motherland
Menoth:red/white
Mercs: really mercs then to go for a gold/camogreen
Retribution of Scyrah(because elves have to have really long complicated names): is typically an bluish green/white

also this site will give you a little more information then what I gave on the world and what a Warcaster is to whomever may wish to read
[url=http://warmachinetactics.com/the-game/] Warmachine upcoming video game website[/url]