My problem with some of the scenerios is that they are completely made up, N17's did not meet Fokker DVII's, because they had been withdrawn before the D.VII reached the front lines.

The SS.D.I's didn't make it out of 1916, there is little evidence they even made it to the front lines (used mainly for training, although Jasta 5 possibly used them in combat), so did not fight even SE.5a's let alone a Sopwith Snipe, and even then only 95 where ever built.