
Wait, how are you getting 12 alliances??
If you have 4 divisions each using 2 fields then that would make 8 alliances that move on to finals on Einstein.
If you had 8 in the finals you could do elimination rounds like normal, but you would need to find space for 8 fields plus Einstein so 9 fields total

. That would take a lot of room.
Edit: Did you mean 12 from each division? Why not do 8 from each field and have 16?