But something of serious, chalenging and crowded like The Fellowship and the Nazguls not?
Try again, you can do better.

Not to talk of the lack of 5 planes games.
We miss challenges 2 vs 3 of Nieuport 28 vs Albatros D.Va, Pfalz D.XII vs Spad XIII, Pfalz D.XII vs S.E.5a, or Albatros D.Va vs Spad XIII/S.E.5a and Pfalz D.XII vs Nieuport 28.
They would be really challenging leagues for experts and, much more, useful when you have to train a beginners: you put two expert in the pairs and the other in the trio. Balancing.

My two cents.