The last weeks I play Kawaguchi's Gamble by MMP. It is true that the rules are badly written and contain a large number of errata.
While there is certainly some errata I don't know that its a large number...here is what I recall.
Page 3; 4.112: Strike through 2nd to last sentence
Page 11; 10.351: first line, 2nd column should say "...increase to Eliminated."
Page 17/18; 18.5: If the American leader tries to degrade the Japanese Ammo track then if the ammo marker is on the first two boxes it needs to be a DR equal to or less than...if the last box then it has to be less than.
Page 18; 21.2: 2nd sentence should be Regroup...not Refit.
Page 21; Example of Play 3: middle paragraph, the Japanese roll an 11.
Page 17; 18.3: Each American and Japanese leader...