Don't worry I think I managed to fix the problem, I'm just doing checks with all the models of Cloud in the Battle Models Characters, to be sure that everything works, I'll be updating the download link soon since. I recognized the Issue and came up with a way to fix it and thanks to slayersnext and his little steps to make his swords work i could make even his swords work, i just took Kaldarasha's model "rtaa" file from the Characters battle models and put it into all the folder options for the weapons models. Have to do a bit of work with PCreator to put 10 ids for that rtaa, and I thank the "direct folder" on my installation because it's helped me a lot saving me the hassel of having to be packing and unpacking the iro non stop.
I tested the fixes on Cloud's vanilla battle model thanks to that folder, I just added the rtaa file from Kaldarasha. The model didn't change but the swords worked, so I did the same with the three folders, fixed the qunatity of ID's in Cloud's rtaa, putting them up to 10 thanks to PCreator that I managed to get to work, and everything seems to be working with that rtaa now, but it is a base file, without it some weapons would stay white since I think those would have their textures on that file... anyways I'll keep testing the models and upload the fully fixed iro once I'm done ^^
---EDIT---
Ok I've checked all the options for Cloud's Models in the Character Battle Models mod, I've checked one by one all of them with all the weapon options. I had to do something with PCreator as I said above, but it was easy thanks to Slayer's guide to make his swords work properly on his post and now every model works perfectly, no white textures, Kaldarasha's model is not missing the shoulder plate or anything and all the weapons and mixes work as they should. Here is the new download link but I'll be edditing the one in the main post.
Link Fixed IRO:
https://mega.nz/#!puoylKYB!1abHm_19blfoIaw_gZnrd7YHRe63pMgnfIaHCE770ao