What are the characteristics of nomadic people in various places?

Nomads in the north and west are good at riding and shooting bows and arrows, and are used to using bows and arrows and knife collars. They advance when they see advantages, and retreat when they see disadvantages. They don't care about advance and retreat, and often hide in dangerous places. So we must compete with inducements and ambush them. If you fight in the wilderness plain, you must shoot from a long distance with a strong crossbow and defeat them with a surprise attack. The nomadic people in the south make good use of javelin, border card, flying knife, ring knife and wooden crossbow, but also want to win by surprise.