I was unable to research the tier 2 Trafalgar from Agosta. But were able to research Dover. I also able to reasearch the Nav from Simargl. When I was about to research the Trafalgar, it says "The reasearch requirement not met." AFAIK this can only happen when all modules of the previous ship has yet to be researched. But all modules in Agosta has been researched. So, am I missing something?
I have some problems with researching.
It's not enough to just research the modules, they must be purchased as well.
All hands: battle stations! This is not a drill.
[SAD] - Search And Destroy!
I fgured it out. I just need to claim the researched ship. I don't know that there are 3 steps of owning a new ship