What do you need to have and know to create a campaign for Heroes 5?

Open Create Campaign, and you'll see the campaign name, description, and lines for the maps. Write the name and description, then click add, and another window will appear. Fill in: map, name, description. Then, write three bonuses (at the very bottom) that will be offered when loading the map, just like in the original campaigns. Click OK, and your map will appear in the lines for the maps. Then, go back and click add again and do the same for the other maps!