Looking at that map, I can see the following scenarios in sequence
1) Putting the Kremlin in check
2) Isolating and strangling the Home Islands into submission.
3) Turkish perfidy, Japanese logistical assertiveness and the fall of the Suez
3A) The fall of Aden (IJN vs Commonwealth)
4) The Vichy fleet joins the Axis
5) The D.A.K. with Italian and Japanese auxiliaries in West Africa (not shown - Mussolini's *One Million Bayonets* create a bigger A.O.I.)
6) "The Leap" - Dakar to South America (Japanese 5th column in Central/Latin/South America)
7) Battle of the South Atlantic (USN/RN vs Axis combined fleet)
8 ) Axis Island Hopping in the Caribbean (includes Ernest Hemingway's Last Stand, Fortress Cuba)
9) The invasion of New Orleans (Creole guerillas, Axis war crimes)
10) Defense of the Heartland (behind every blade of grass, a redneck with a rifle in his hand and hate in his heart).
Modeling, wargaming, etc - it's all there.