Originally Posted by NobleIre
I was kindof thinking along those lines, except having the guild (vertical) banner just be across the pole, centered on it. Kindof like some ancient roman banners, etc. (though the cross section wouldn't necessarily be another flag in those circumstances.) So basically, a big vertical flag and then a small thin flag - perhaps requiring guild banners to be more simple.
The interesting thing about roman banners is that they required that they have red background, but the design was up to the legion...some had wolves, eagles, horses, etc...
If we were to go along those lines, then you can make it just 1 banner with a single color background across the entire army then allow the individual coat of arms as the design...basically a small shield with the coat of arms layered onto the single color guild banner