got this from a judith boweman, us army museum of hawaii.
Most of the weapons used during this time frame were mobile AA guns and fixed CA guns. As for tanks I contacted the 25ID museum at Schofield Barracks and he advises:
“Okay, the only tank unit in Hawaii on 7 December 1941 was the 11th Tank Co. was not assigned to either 24th or 25th ID. From what I can see it was assigned to the Hawaiian Department on 7 December. According to my info, the company was disbanded on 23 April 1942.
As for what tanks they used……well……I know what they were using in the mid 30s for sure but I’m not positive what they had on 7 December. They definitely had M2A2 light tanks in the mid 30s (I’ve got photographic evidence of that), however I don’t have any photos that can be definitely dated 1941. According to sources, the standard light tank in 1940 was the M2A4, which on the outside looks like a M3 Stuart. I do not see any photographic evidence of 11th Tank Co. possessing M2A4s on 7 December, so I’m hesitant to state anything for sure. Bottom line: they had M2A2’s in the mid 30s”
hope that helps someone.
joe