However while looking through the files, I also found some lost unused civ leaders, two of them for brazil (Vargas and Member de Sa).
This is correct, not sure if I mentioned this to anyone else, but yes there are in fact unused leaders in the pack. Many of them are deactivated due to not having any XML entry and only a leaderhead portrait, while others do have an XML entry but the file is either outdated or the leader is using traits that have changed or are no longer in C2C. I didn't remove these files or portraits because A.) the mod doesn't call these files anymore and therefore doesn't register an error because they are that outdated, and B.) I wanted to at least keep these hidden leaders in the pack in case I ever update the pack later on or if someone else wants to.
Now the reason I haven't activated the hidden leaders is because it would currently take a lot of work due to the missing or outdated XML files. This means assigning proper traits and giving each leader a proper AI through XML number values, it's very hard because many of these leaders I have no idea what they were like personality wise and I'm not exactly an expert on what each XML AI values do (I could end up making them all nuclear Ghandis by mistake!).
Six whos civilizations are not in the mod like Hoiliday and Earp for the Great Plains plus another guy who's name I don't remember maybe it's only five guys, and three leaders for the Outlawz named James, Kelly and Lopez.
The pack I updated was from a version of this pack that was updated by someone else, and that person updated it from one of the last versions from Sparth. Now I'm not too familiar with what this pack used to have in the past, but I know some of the civs certain people didn't like for being too wacky and so it's likely the person who updated before me removed some of the original Sparth civs due to personal taste (as when they updated it it was more for their own personal taste and the taste of those who they were updating it for).
However I also know that as Sparth updated his pack (when he was still active) people didn't like some of the civs he included back then either. So it could also be that with the later packs he slowly got rid of the more wacky/unpopular ones.
I would like to know how to add these two new leaders into the game to make Brazil feel more alive since they're in the files
Like I said that should simply be either XML file creation (if the leader doesn't have an entry) or updating their XML file. However I would need to know like the personality of these leaders and someone else would have to tell me a benchmark as to what XML aggression levels creates a literal nuclear Ghandi.
but for the other six guys I would have to install two new nations like the Great Plains tribe and the Outlaws to use them so yeah I need a few tips.
Yeah I didn't even know those were once in the pack until now. I might download one of the original versions of this pack to see what the original lineup used to be, but it would probably take awhile since like everything of those civs would have to be updated (C2C has gone through massive changes since even the last original Sparth pack).