I think MacArthur should have went on the offense rather than stay holed up in Battan. I know he was hoping for reinforcements, but at some pointe he had to have been told none were coming. It would have thrown the Japanese back and i think he would have been able to force the Japanese to divert forces to the P.I. I believe his ego got the best of him and he did not want to admit he was wrong. The amount of men and weapons he had could have made a strong offensive force.