Attached Link: http://history.sandiego.edu/gen/filmnotes/windtalkers3.html

A quote from this page: "The Marines in the film were equipped with M1 rifles, M1 carbines, Browning Automatic rifles and Thompson sub-machine guns, while the Japanese soldiers were armed with Arisaka rifles, Japanese type 92 machine guns and type 99 light machine guns." I'm not sure if that helps, still haven't gotten around to watching the movie.