Extract into your DaC location make sure it ends with with your mod name not data (ex. C:/Program Fils(86)/steamapps/common/medival 2 total war/mods/Third_Age_3) Make sure it is a fresh v3 install and it is strongly advised that it is a second install or a copy of the existing DaC v3. Afterwards go into data/world/maps/base and delete map.rvm. Last step is to go to data/sounds and delete events.idx. If you find any bugs contact me on TWC or in the DaC discord channel. Enjoy.