Some SH3 & GWX questions

[The Guardian]

Hello,

I'm new here,but I'm playing SH3 for a while. I just installed the GWX mod, and it is a huge improvement. I just have some questions about it:

My boat was submerged, and a dept charge exploded above me. The watchtower was damaged. I escaped from the destroyers, but while doing this, I constantly get the message 'watch tower damage'. Every minute 5 times or something. I had no flooding or serious damage, but when I surfaced, 2/3 of my crew was dead Is this a bug or?

Whats the difference about the flotilla's, except for their locations? I'm now at Lorient, (1942), but that base sucks as you cant leave it quick. I always have to patrol at AL etc, nice over there, but I never encountered a taskforce or something. I heard about the Norwegian campain, how can you be part of this? Or is it just random & luck?

Final: When I change the flotilla to 11 (Bergen), I'm being moved to Italy..a bug?