I don't know if you can choose a new sub as such. But if you do well, you will be offered a new sub as it becomes historically available.
Also if you really mangle up your sub, and manage to crawl back to base, your current sub goes to the scrap-heap and you are issued a new one. Usually of a older class. I got a few holes on a Gato sub in an earlier career, got a pat on the shoulder for all the tonnage I sunk and getting back alive (sans some deck crew, this was during v1.1), and a new P class sub. Yeah, thanx ComSubPac... :p
|