General questions and discussions.

1. I don't understand the term "pirate" in this context. The project is unofficial and distributed as an add-on; from a legal standpoint, modding is not piracy. The mission is self-evident: to improve and develop the game, without a final goal.

From a legal standpoint, if you will, the project is absolutely illegal according to current international legal norms. And you know this as well as, if not better than, I do.
If you disagree, please (if you don't mind), answer why you didn't notify the copyright holder about any manipulations with the closed (i.e., not publicly available) game code before development. If you have permission from the copyright holder (and I have information that this is not the case), why haven't you provided this permission for public viewing yet?