“Battle For Saipan” (** out of four) was a serviceable WWII melodrama set in the title battle in which a tough medic (Casper Van Dien) finds that the Japanese forces have overtaken his U.S. hospital and has to lead other soldiers (Louis Mandylor, Jeff Fahey, and others) to fight back and to safety. A “G.I. Joe” version of WWII with lots of jingoism, hand-to-hand combat, and gunfights but don’t look for anything regarding historical depth or writing profundity. Guess you wouldn’t expect much else from former heavy-metal singer and writer/director Brandon Slagle. Beware of Van Dien’s shifting Brooklyn accent.