Thanks for the comments!
@Colombamike:
All in all I suppose we kind of came to the same conclusions?
- The single 2cm on the forward searchlight plattform was indeed removed by early 45, apparently because of poor firing-arcs.
- I am not entirely sold on the 4x2 2cm's underneath the fwd rangefinder. I don't think that there's enough space for four such guns and the picture is too blurry to say for certain.
- The twin mounts fwd of turret A are supposedly 3,7cm Flakzwilling 43's. (As are the guns behind the torpedo tubes)
- The gun next to the rear rangefinder should be a Bofors Flak 28. (6 single mounts were equipped)
- According to Koop & Schmolke, light AA consisted of 6x 4cm, 10x 3,7cm and 28x 2cm (3x4, 6x2 shielded & 2x1 unshielded +2unknown).
From looking at the photos, I had to disagree with them here and there and came up with 6x 4cm, 8x 3,7cm an 26x 2cm (5x4 + 2x2 shielded + 2x1 shielded).
Due to the declining war situation, I believe changes to te AA-outfit were made frequently (without documentation?) and it was simply mounted what was available.
So, I guess we will never be able to tell with certainty what is wrong or right in that matter...
Well, I never claimed to be right, or now better than respected authors and historians, but those were just my 2 cents...
Cheers!
maomatic