Bug: Norscan outposts no longer have basic garrisons.
In WH 1 you at least had a few units to defend the outpost without building the additional garrison. Given how little building slots they have this was essential. Besides, every race has this. Now, if you don't build an additional garrison building, your outpost has literally zero units and everyone can just walz in.
8 months CA, and you missed something like this.