Campaign to play for people in the South (Total War: Warhammer)

Good day to all, the strategists! :)

I passed today the campaign for the Empire. In the beginning killed all the vampires, then fought with Chaos, then completely scrubbed the earth Norsky, in the end captured all the people and destroyed the elves. In the end, there are only Gnomes and dwarves With Ya the whole game was in the Union. And here's the problem: I for the entire game a couple of times just fought with the orcs. On the quest once and once one of the army reached the North, the rest of the work was done the dwarves that the orcs at the root of the cut. Well, I also cut two fortresses of the goblins in the center of the map and all. I think it would be cool to play for the border of the Kingdom or bretonia that are closer to the South, but for them to not play. For dwarf not sure I want to play, because they have not seen interesting units in addition to a powerful infantry (maybe I do not know?).

In the end, as other players have played? How did you manage to simultaneously hold back the chaos and vampires and fight in the South? Or there is no climb?