AAA at Bataan/Corregidor

The Army Sally bombers that participated in the final attacks on Bataan at
the
end of March bombed from "9,600 yards" altitude and used a variety of bombs
ranging from 50kg "daisy cutters" to 250kg demolition bombs, according to
these
debriefs, which consist of hundreds of pages of transcripts and
documents.
Hard to get decent accuracy from that altitude, so the US AAA must have been
giving them fits.

Any confirmation of the story that a supply of proximity fuse AA shells was
brought to Corregidor by submarine and then hoarded until the Japanese planes
presented a nearly perfect target?

John Dupre'