Rule [11.6.2] says
Gato/Tambor submarines fire at aircraft with no
modifier if both .50 caliber machine guns are
active, and receive a -1 to hit if using both larger
caliber AA guns (the 40mm/20mm combo).
Chart [A2] AA Attack vs. Aircraft seems to be missing some of this information, or is different from rule 11.6.2: the Tambor DMR is listed as +1, and the Gato 2x50 or 40/20 specificiation is different. Is rule 11.6.2 correct? Is the chart incorrect, or just lacking some information?