Flyng against the Sopwith Snipe (SS) you simply have to cover your wingmates, always. Think which is the most likely target of the SS next turn and then try cover him. Better if you do not expose yourself too much in the process.

And head to head [on almost equal combat tables] are obviously good in these pidgeon scenarios, but a smart SS pilot will avoid them at all cost.

Augh, the wise man spoke