Hi, I have just finished my first patrol, hasn't been easy, I sunk 3 ships, and badly damaged another, I have discovered that with the mod "Natural Sinking Mechanics", deck guns are useless for trying to sink a merchant that hasn't been torpedoed, I placed around 180 shots into it & a good 50% below water line, that's when I run out of ammo & it escaped!

I probably wasted around 3 torpedoes due to learning manual targeting but persistance paid off. All In all though an enjoyable patrol, a quick summary:
I was stationed at Manila & sent to patrol the Philippines, my Very first kill:

Next, was at night, and the final kill only 50 miles from Manila:

Docked & received a medal ... Aw shucks, was just doing my duty!

(I love to ham it up!):

Thanks to all concerned for your help & guidance.

(and patience!

)