Chosing Between Usn Sub Mission 10a Versus 10b

Choice? If I play 10A, does that mean I can't play 10B and vice versa, as part of the campaign?

If I win the one I select, do I advance to mission 11? Or is this the end of the campaign?

It tells me to chose wisely. What am I supposed to base my decision on? It's not clear at all.

10b is actually 11.

I dont know why they are named a/b they arent on all the campaigns.

OK but that doesn't answer my questions.

If I chose to play 10A or 10B and win, do I go on to 11 (or 12 according to you)?

And is there anything relevant to take into account when "chsoing wisely", as the game suggests or is this just scuttlebutt?

if you play 10a then you go on to 10b

10b is #11 and there is no #12

after 10b comes scapa flow.

So, no matter what, one way or the other, you must play 10B but you can potentially skip 10A?

And, again, about "choosing wisely", is there any relevance in that?

Personally, I want to play everything but the game's text is a bit ambiguous about what to do or choose.

if you choose to skip 10a, then you just didnt play all the missions, nothing special will happen and you wont be demoted to deckswapper

Well, I just fired up 10A and was in the battle for quite awile until I got crushed by a DD.

Not far away, casting a shadow on the hulk of my sinking sub Lionfish was a humongous ship, the likes of which my crew has never seen in battle before.

It's the gamebox cover ship!

That would be a battleship. and I advise you not to stay too close to her

She sunk me in less than 15 secs after the game startet.

That would be a battleship. and I advise you not to stay too close to her
She sunk me in less than 15 secs after the game startet. 

Played the 10A mission a second time and won too easily.

I headed 230 degress at the start, hoping to flank the approaching enemy ships from the south.

I looked at their starting formation and easily found their battleship bringing up the rear.

As DDs and DEs approached and ship to ship vollies began, I fired at two approaching DDs and slipped past them by going right between them.

I lowered engines to 1/3 and waited around for the battleship to approach. During this time I did a lot of pivoting, firing off some fish to scare away curious ships and sink some that were damaged.

After a while, I was left alone, with the battleship coming right up towards me. I fired 4 into it's bow, then my 4 afts into its aft. I pivoted and kept following it and at some point victory was mine as the convoy made it out.

I wound up hitting the battleship with a minimum of 16 torpedos and it still didn't sink. Isn't this a bit excessive?

But stay away? No - whatever for?!

That would be a battleship. and I advise you not to stay too close to her
She sunk me in less than 15 secs after the game startet. 

Just finished mission 10B:

06:21:31 - Destroyed BB49 with a torpedo N at 415 meters.
06:22:55 - Mission completed at 54.7.57N, 1.39.5E

wave:

I was amazed at how relatively easy 10A and 10B were. You can win them without firing a shot or at least without sinking anything.

I loved the epilogue. enigma!:

But that's it, right? Time to got topside now, is that correct?