Good to see you playing already s7rikeback! The Museum is very large and demands that the system resources not be cluttered up. The size of RAM on your computer has nothing to do with this. Programs such as Game Booster can clear up system resources and the museum will run fine, even on 2 GB of RAM. We're pushing the limits of fixed sized Windows elements here.
The game itself should have no such problems. What do you mean by it "sends ships to snorkel depth?" You mean then dive under the water like a submarine?
And how about some system specs, operating system, RAM, motherboard, hard drive, etc. That would help in deciding if we have to make some changes in the cause of gameplay issues.
On the naming issue. I can see both sides equally well. One side says that the Japanese called these ships by these names and we should call them that also. It's not a Zeke, it's a Mitsubishi A6M Zero.
The other says that during the war Allies used their own nomenclature not related to the Japanese names. They were Zekes, @#$@#%$# it!
I can see that. And I've thought that the Japanese names were most appropriate and even said that to Max. But then CapnScurvy opened his mouth and uttered the magic words "keeping the core mod as close to MadMax as we can." and that really is the hydrogen bomb of mod arguments here. So, lets clean up the names in the core mod with more appropriate sounding designations "Big Modern Freighter" type, modeling them after the ONI manual whenever possible.
Then an add-on will be available for those who wish to use the Japanese designations for those targets. War's over! Everybody wins! Sorry if you died before we declared victory. Won't happen again.
S7rikeback, your link points to the Dropbox signup routine.