I was thinking more like historic encounters:

Aces meet: Guynemer (spad7) vs Udet (Albatros III)
The last Combat of Werner Voss: Voss (Dr1) (double gas) vs 4or5 SE5 (only for Blue Max legends )
The Circus is out: 7 Dr1 vs 2 F2B + 4 SE5
Rene Fonck's Cigognes: 6 Spad XIII vs 5 Fockkers DVII
The end of The Red Baron: 1 DR1 vs 2 Camels
Guynemer's victories: 2 Spad XIII vs 2 Halberstads two-seater
Blue nose (Bishop) victory: 1 SE5 vs 1 Halberstads

All scenarios withh normal fuel except Voss.