I send out 100 men, they find nothing. I send out ten men, they don't come back. Is it churlish to complain about overt flag waving in war movies? Or to decry propaganda prose in the same? Back to Bataan is guilty as charged, yet such is the composition of Edward Dmytryk's film, and its focus on a part of the war we rarely have seen on film, it matters not. We are in 1942, and after the fall of the Philippines to the Japanese, U.S. Army Col. Joseph Madden (John Wayne) stays behind to lead the local guerrilla resistance against the Japanese army. With that synopsis it isn't hard to figure out…