Got me a copy of the rules. Game looks neat but 4 warbands only sounds a bit scarce... scourging the web I've found a PDF with some more, but I'd like to ask here to point me to any additional material for the game you're aware of. I've already got the downloads at BlueMoon website, too.
I've also found cards and rules for
secret objectives on a blog (geektactica) but they're at a resolution unsuitable for printing...