Battle Of Britain ??

[Chivas]

I don't know if IL-2 Cliffs of Dover will have everything your looking for, but it will be the next benchmark in combat flight sims, and the most advanced Battle of Britain scenario ever made. You will be able to do training flights before entering the battle, fly highly detailed aircraft, with the most sophisticated Damage Model in simming, over highly detailed terrain, but you won't be able win or lose the Battle of Britain by yourself.

There are a few people still flying BOB WOV which has a very good campaign, but most people fly the original IL-2 series and are waiting for the release of the Cliffs of Dover this March.