The stairs are immediately built during the siege period and the rams are not only built for longer, they can also help to storm the castle/fortress itself. Now we don’t just carry two stairs and a siege tower into battle, it’s a little different. In Mount & Blade II: Bannerlord the mechanics of the siege of the fortresses were recycled. This is a very modest guide and base that will be updated soon. We can already give you general tips that you can use later in Mount & Blade II: Bannerlord.