[BomberBoy]

There was only one amphibian version of the Catalina, the PBY-5a, the "a" being the important part. The PBY-5 was strictly a seaplane. All versions could be fitted with beaching gear, however this was a manual process.

The PBN in the game has a different nose, nose turret and much taller tail than the PBY. Otherwise, it's close enough for government work.