Finally, available for download (at bottom).
Unfortunately, there are not enough nodes to make the armament more accurate - although there is plenty of room and some parts of the ships are modeled to take a node! There is also a bug with the Bismarcks aa-gun-nodes behind the B and C turrets, they won't fire in most directions! That goes to the developers....
i used several nice websites for information about the armament upgrades:
Elco:
http://www.ptboats.org/20-05-05-drawings-002.html
Bismarck:
http://www.schlachtschiff.com
Tirpitz/Prinz Eugen:
http://www.kbismarck.com/
The changes i made:
> Hipper Class Heavy Cruiser
6 x 37 mm Doubles
-> 1943 the 2 forward mounts change to 20 mm Qauds
2 x 20 mm Twins (funnel)
-> Feb. 1942 2 x 20mm Quads
Searchlight-Top-bridge
-> Jan. 1942 to 1 x 20 mm Quad
Screenshot in 1943
> Bismarck Class
-> 8 x 37 mm Doubles
2 x 20 mm Twins (Bridge)
-> 1941 to 2 x 20 mm Quads
(Funnel-Searchlight) 2 x 20 mm Twins
-> 1943 to 2 x 20 mm Quads (Tirpitz-style)
> Type34 Destroyer
1 x 20 mm Double
-> 1942 to 1 x 20 mm Quads
> Elco aka the new "Troubleboat"
-> 1 x 2pdr 37 mm (PomPom)
-> in 1943 to 1 x 40 mm Bofors
> S-100 boat
1 x 20 mm Single
-> in April 1940 to 1 x 20 mm Double
1 x 20 mm Double
-> in April 1940 to 37 mm Doubles
-> in 1942 to 1 x 20 mm Quad
Download here (zip file)
http://rapidshare.de/files/5239128/AAupmod.zip.html
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@Soviet_Warlord: I was in an XXI in that testmission. I think when you have a deckgun, you can deal much better with them

Nevertheless, you'll take real hull-damage when they hit you, not only light damage to your guns.