update of my progress, I managed to change both the menu song and the sound of rounds, I also changed the photos that appear in the lobby of each map, I'm looking at a way to implement the loading screens, so far that's what I've done, anyone tip about modding helps me. I started uploading the videos of the progress to YouTube in case you want to see them.
-naxxito
https://youtu.be/gE_-PhY_4XY?si=O4yZXOFY3hMUlI3d