The magazine included a map and counters for the Japanese and Chinese players. You would still need a copy of Origins of World War II so as to be able to use their counters for the US, British, French and Soviet players.
In search of a map that would be as functional as The General original, but with the evocative appeal of the parent game's - I found this pre-WWI (1906?) political cartoon map both loaded with character AND geographical detail.
Simple White-Out dots for the individual Chinese [target] cities make it completely functional.