In the beginning Captain Crane and Kowalski are in the FS-1 checking out the coast line of Italy. Crane reports to Admiral Nelson that jungle growth has overtaken all the land and buildings, however what is shown is forest trees not a jungle.
During this episode Capt Crane' s insignia on uniform and flying jacket is that of a Commander, not a Captain.
When everyone is knocked out on the bridge, Chip is opening the emergency oxygen. You can see a shadow to the right move away.