That makes sense... I did save my game as "EH95" then I docked at lorient after my 1st patrol..... Once I got to the "command room" with all the features like options, log, missions and stuff there was no save option after I finished my 1st patrol?!? So i went to the main menu and cliked load saved career and it was just back to "EH95" save and I spent an hour getting back to lorient AGAIN and when i docked and got out of my boat (to get out of boat hit esc and back to "command room"??).. and here I was again not finding how to save game after completing patrol #1.????????

or load after completing patrol #1?!?!
OFFICIAL FROM THE USER GUIDE:
Career Saving
For each career patrol, there will be two auto-saves, one before leaving in patrol
and one after returning from patrol.
You can also save during patrols. All these saves will be available for a specific
career profile.
Starting a new career with the same profile will cause you to lose any previous
saves under that profile.
Career Loading
To load career saves, you must select a previously created career profile. When
selecting a save, a panel will display relevant career details. Because saves are
stored in chronological order, loading an early save will delete all the following
saves of that career