there is a tutorial here, with a link to a video. You need to download CM 16 by Rinaldo and use the program to clone a stadium (I normally clone El Libertador, for example), then you'll select the ID, choose the same one kotiara used for the new stadium. Then save the cloned stadium and extract the ui and sceneassets folder from the file kotiara uploaded and put on FIFA 16 data folder, replacing all the cloned files.
https://www.youtube.com/watch?v=vHB0adI8r5M&feature=youtu.be (The part you need to know starts with 1:40). Before using the options of the program, you should know the basics of CM 16, select xml file, select the proper directory of the database (db folder usually), the language and then CM 16 will be ready to use. After you clone the stadium, don't forget to save. And after replacing the files, regenerate the game with CM 16 or other tool like i68 controller.
I think this list you posted it so many times every where in the forums that I fear any existing number or equation can give the total amount of post mentionning this list on SG..
Sounds like a real joke..
Those stadiums are needed, ok, and I would be glad too to be able to play on them on fifa 16 but...
Mate, if you tried to convert only 1 stadiums by yourself since you have started posting this list years and years one, I guess you'll probably been able over all those years to convert all 1500 + exisitng pes 6 stadiums in the meantime you're loosing posting and posting again to convert those national teams stadiums
If I even could give a try to convert the pes stadiums models to fifa 12 at least format I would do it if I could be there's no tutorial completed and detailled to do it