Gameplay tactics on the large map.

Well, for example, you can use beasts to take down zombies, golems, and other slow-moving units, but they won't be able to attack without taking damage, so you'll have to run away from them and attack with your hero. It's slow, but what can you do? And you should have enough resources on your hero to build a building that upgrades your first-tier units, and with them, you can overcome many challenges.