New to Total War: WARHAMMER II are rogue armies. These are warbands of desperate outlaws and are often comprised of unusual combinations of troops.

Rogue armies begin as hordes and will appear from time to time, typically in sparsely-populated terrain, and will eventually seek to establish a permanent presence on the campaign map by colonising a ruin or assaulting an occupied settlement. They are usually not immediately hostile, but will cause disruption by raiding the lands they move across.