I already understand that all events in a battle can unfold depending on the terrain (except in cases where the enemy knows "Teleportation" or has sorceresses and/or devils in their army). There will be many stumps, trees, and grass – a large army composed of large creatures will take a very long time to move, and then your archers (with unlimited shots, or at least with a large number of shots) will kill most of them, and your infantry will finish them off!