Thanks for that. useful info for the future!
I'm having issues with my latest boat (balao) that I cannot resolve without a wipe and clean install and remodding all my files again.
will likely abandon this campaign and wait for FOTRS to polish up a bit more, then just start over with that.
turns out I didn't need rescue sub anyway; i just needed to get a bit better at playing. and I have.
broke 2 million tons sunk before I gave up on this campaign.