There are currently two ways to get it:
1. When you get a LoM
2. When you ask any governor or diplomat about International Relations
That second option is available to everyone from the start of the game, of course.
But I doubt anyone ever cares enough to press that, because of course it tells you nothing that the Nations Relations Interface doesn't already do.
Would be nice to link that to some explanatory dialog instead, but even then players still aren't going to be choosing that option, are they?
Maybe if I change the initial text so that players familiar with the game will actually notice it is different?
Other option might be to have the book available for purchase; at least then it may show up in an interface players will often look at.
What about players who are just interested in playing the stories.
They are probably not going to go and get a letter of Marque - or talk to the Governor unless the story sends them to & then they will stick with the story dialogue.
They will wonder why if they attack a ship different things happen from previous versions of the Game.
