Mod you ps3/xbox360 save file, load xbox360/ps3 games, options, export save, load in xbox1/ps4 game under the same gamer name, load game, options, import save.
You'll be fine, people mod this way all the time. If your going to do lots of modding then use a mule so you don't lose your main account's game progression.
You'll be fine, people mod this way all the time. If your going to do lots of modding then use a mule so you don't lose your main account's game progression.