All of the above...As there mostly the killer bugs..
But I would like to mention one immersion killer...
Please get rid of the Avro Lancaster, it WAS never there in the pacific. replace it with am American sub hunter....Not sure what the aircraft was, actually I do know the B25 Mitchell..plus the "Cats"....and a few more variants.
http://www.answers.com/topic/list-of...y-world-war-ii
Deep six