 "That old saurian-countenanced leatherneck, Wallace Beery, is back in uniform and fighting trim in "Salute to the Marines", which burst into the Globe on Saturday.We say burst because MGM hasn't spared any ammunition in making Mr. Beery's personal defense of the Philippines a wild, rootin-tootin, bang-up affair, and in Technicolor, too.Many a model set has been demolished, many an extra smeared with scarlet, and many a Japanese blown sky-high before this extravagant yarn is over.