The 3rd group of Rampart goes, for example, to the 5th group, and from the 5th group, either Swamp or Tower goes to the 3rd group.
The 4th group of Rampart goes, for example, to the 6th group, and from the 6th group, either Swamp or Necropolis goes to the 4th group.
And all the different races will still have time to fight each other in the next stages, when it's really impossible to separate them.
And why were only Rampart repeated twice? Did it not please Fortune:D?