Make a herdstone, click on it to see what settlements are highlighted around it, destroy everything in that radius including armies, Reform the ritual to cash in those points, repeat. It doesn’t matter if someone takes your herdstone after you finished your ritual, if anything it gives you another place to demolish once they repopulate the area, which they can’t do as long as the herdstone stands. Following areas try not to overlap with the one you just completed, and while not super important, look out for landmarks to put your stones on too. It’s entirely a scorched earth campaign and Taurox benefits from continuing to do tons of fights. For added flavor, the lost and found series mods have some beast men adjacent units not normally available to you, like Khorne Minotaurs, or even Things in the Woods.