Hi BUKER,
I changed some details of the IX C/40 conning tower to make it look more like the late-war versions of this Uboat type. I added the Snorkel pipe on the side, reworked the Snorkel, added Ammo canisters and the "Flakschutzbügel" to the Wintergarten and put the Life rafts canisters on the back of the Turm. I also changed the compass housing in front of the conning tower; and the "Netzabweiser". Some parts of the "Windabweiser" on top of the tower are also missing. As I am absolutely new to Modding I can tell you it was a lot of work, at least for me!
Here are some screens of my U-889 and the real U-Boat, surrendering to Canadian forces in May ´45:
The problem is that, due to reworking the 3D model of the "Turm", all the textures got messed up. So I did my own textures like the one of U-889. It´s still far far far from perfect; for exaple the deck textures for the tower are completely missing. Anyway, I´m quite happy with my U-889!
As for the 37mm Flak gun on Your IX D2, change the following in Your Data/Submarine/ NSS_Uboat9d2/ NSS_Uboat9d2.upcge:
;************************************************* ***********
;
; UpgradePackSlot
;
;************************************************* ***********
[UserPlayerUnit 1.UpgradePackSlot 1]
ID= UpgDeckGun
NameDisplayable= Deck Gun
Type=NULL
AcceptedTypes= GerHeavyAA
UserCustomizable=Yes
IDLinkUpgradePackSlots= BowDeckGun
IDLinkUpgradePackSlotsIntervalDefault1= 1939-01-01, 1945-12-31, Upack37mmSingle
Beste Grüße, Kurfürst