Since yesterday evening I have been frantically attempting to mod in a race from the warhammer 40k universe I am calling the Exodites. I am basing them off early, planet-bound eldar from the 40k universe. Unfortunately I have run into a few problems. 1) Adding Traits: I have now tried about 4 times to create a new civ-wide trait for the Exodites. I have done this by copying and pasting the xml formats for other civ-wide traits and adapting them to what I want them to be. Unfortunately, this not only doesn't work, but it derails the entirity of the other traits. I have since deleted my additions and it has returned to normal but I am still far from my goal. Also, when loading the game it came up with around 100+ error messages. 2) Adding Units: Specifically my hero, whom I planned to be Eldanesh from eldar mythology. I added him in the same way as the traits (copy and adapt) and encountered the same problems. I have not tried to add any other units. 3) Adding Leaders: Same method, even worse result: my game now ceases to respond whenever I select the exodites from the play now menu. EDIT: I have now fixed this but made no progress on the rest. I also recognise that all of this points to a flaw in my method, but the same metod worked perfectly when adding an Exodite Palace and when creating the Exodite civ template in the first place. Could someone please help, I know a personal mod is not a high priority but this is my first modding attempt and I really need some advice.