Essentially I used the DDDA arc tool to extract the arc files, then swapped the files from one armor piece to another armor piece and finally repacked them again. One example: apparently, inside these files there are the models and textures for a cape (I'll call it Cape A) m_body_c203_a.58A15856 m_body_c203_a.69A5C538 m_body_c203_a.2749C8A8 say you want to switch the model of cape A to another model. Extract the files from the other model and copy them inside the folder of the cape. Rename the files from the other model to the same name of the files of Cape A (apparently every armor piece has 2 to 3 of these files ending in the numbers you can see above ( .58A15856 / .69A5C538 / .2749C8A8 ) so swap the files accordingly to their numbers. After that, repack the arc file you've just changed and copy the arc file to it's rightful place (like in any DDDA mod) Now, that seemed to work for me once and then when i tried to load the game again I would get a CTD and an error message saying that the game failed to load a tex file. Here is what I did to solve it: the error message will display the name of a file and its file path stating that the game made an error and couldn't find the file. Create the exact same file and file path described in the error. Use the texture of the model as the missing file (BUT rename it to .tex / .tex 2 / .tex 3 ---- depending on the error message you'll know which one of the 3, you can create all of them inside the folder if you wanna be safe) That worked for me at least. I was able to switch models and haven't ran into any problems so far. I am in no way a modder and don't actually know why it worked... I just stumbled upon it on a trial and error basis... I hope what I wrote is understandable (I apologize for my bad english) and look forward to seeing a skilled modder working with this in a more efficient way! :)