Since everyone keeps insisting on calling the P38 a bomber...
The Droop Snoot was equipped with a Plexiglas nose and an ultra-secret Norden bomb sight. The bombardier was in the nose.
The Pathfinder was a P-38J (or L) modified with special ground-mapping radar and served as the lead plane for P-38 formations who were bombing through cloud-covered targets. It could often pick out targets and checkpoints which would otherwise be obscured by weather. The operator was housed in the forward part of the gondola with a large side window, but did not have any forward visibility, which a Droop Snoot bombardier would have.