heres the story of the map:
in the early 1940s, the Luftwaffe defeated the RAF in the Battle of Britain. Hitler then organised Operation Seelowe, the invasion of britian by sea and air along the south coast.
none of that happened tho. the raf won the battle of britain so the invasion couldnt take place, and thats when he started the blitz.
get the map pk3 here, and screenshots here
if those links done work, copy and paste the link into the adress bar.
the map is for tdm, dm and rb, with up to 64players
heres some other older screenshots that arent in the zip:

















