Welcome, coolhandluke!
To further clarify, Germany may move out of the sea zone in combat movement even if its ships end up in a friendly sea zone. Moving to avoid combat in this situation is considered a valid combat move.
Combat move. Could an infantry move 1, load onto a transport, then offload another place.
Norway is undefended and I’d really like to use my Eastern Canada transport and my Western Canada infantry. :-D
No. Units may NOT move before loading onto a TRN, nor after offloading.
That applies for tanks as well right?
Correct. It applies to all land units.