each of the heroes you see on the map represent a "banner"....I'm still hoping that I don't need an extra hero and the model on the map could be used on the battlefield but after a huge fight I hope I can remember where he goes back onto the map.
I have about 2500 points of dwarves and chaos, I don't mind playing with the paper print outs glued to a hard paper board for some of the units when I need too. When I played this out before with no real map or anything I found it to be rare to have more than a 2000 point army but the rules also max/min your armies per banner, I'm sticking with the 500 point minimum and 2000 max per the rules I have. the map contains cities and villages and a village can support a 2000 point army but any bigger I would say it couldn't so that all sounds fair.
The play test this weekend will be to see how fair it is to incorporate fleets from man o'war, I really hope it works out without too many rule changes.