You need to complete a couple patrols with success (complete all objectives, sink tonnage) to be offered a new boat - when it becomes available historically. You will get offers for new boat classes only, not let's say just yet another Tambor-Class when you already in command of one.
__________________
"E hoa, ka whawhai tonu mātou, Āke! Āke! Āke!"
(Friend, we will fight on forever, forever and forever!)
Rewi Maniapoto's reply to British calls for surrender, Orakau, 1864
|