[Insuber]

1\Few against Many
A common place of the BoB was that often few Spits and Hurricanes were sent to intercept huge gaggles of German bombers and fighters. Imagine popping out of the clouds just to see several miles long of tight bombers formations, with fighter covers already diving on you.

I had that thrill with Shockwave's Battle of Britain II, watching dozens of enemy planes sailing among beatiful towering clouds.
The Tally-Ho! of the squadron commander gave me that "Holy ...t!" feeling, that I can remember even so many years later.
Something similar is magisterially described by Pierre Clostermann in the last chapter of his "The Big Show", when they attack a Norwegian base among swarms of enemy planes.

2\Sector Control
I believe also that, as Feathered suggested, realistic radio comms from the Fighter Command and Sector Control, vectoring you to the bandits, will add a lot to the immersion. BoB on british side was all about Fighter Command, early wake ups, readiness in the dispersal barrack, calls from the phone, up in the air and then the voice of the controller on the radio (maybe with real Fighter Command characters like "Woody" Woodhall).

3\BBC
A funny fact, related by Brian Kingcome, was that the first radios were shortwave, and one could tune them in flight, so Kingcome used to tune on the BBC channels to listen to a popular songs program during the long and tedious convoy escorts ... all that ended at Brian's scorn, when VHF sets with fixed frequencies were fitted in the planes ...


Regards,
Insuber