See if anyone can do that sort of modding, have a look at how they did it in road to war maybe? otherwise maybe start ww1 in 1915? then atleast the bulk of the civs are at war by that point maybe
Mexico def needs to be added to the scenario in someway but as far whats best i dont know, youd need to do some reading up on it. As we have a brazilian in the forum tonight maybe ask him how he thinks the contestado war should be added to the game?
Already asked him as you were commenting
Umm as for mexico, i have read up on it a bit i can do some more wikipediaing tonight haha but im sure beside details we both know the basics, not to much real fighting, not really anything captured, a lot of underground stuff, some political problems, just like many "revolutions", those are the hardest to put in though, umm..if we don't give the rebels enough power that theres any chance they caan conquer a city, then id say best thing to do is make a civ called rebels, and have them both mexican and brazilian, although if they have no risk they are somewhat pointless
As for 1915 i dont think so, best scenarios are right before the invasion, only addition would really be Italy, and depending on when we do it, possibly portugal and albania and bulgaria. Not to be cocky as an american, but after the three on three (plus serbia and belgium...) started, USA is by far the most significant country to join, portugal bulgaria greece albania, i guess italy would be next most important,
The_J is probably my best bet, he helps alot with little things i need, if its python im sure he can do it
This guy was President through almost all of WWI. Favorite Religion would be Christianity, and favorite civic could be Representation. I can't think of any traits.
Maybe replace Romania2 with Mexico, if possible?
I will add him, prob not for a bit but i will in the next update, (i like to add LH in bunches so its easier and less work)
Mexico is already in the scenario, most civs are (bolivia is, so mexico is

), we were refering to the mexican reolution that was happening at the time, I could add a rebel civ, as there was a brazilian one at the time too