Pokemon Black 2 help (modding battles)

[mariofalz]

Hello, I'm trying to edit the elite 4 so that they have different trainer sprites and trainers altogether. Ie replace the current elite 4 with blue, red, cynthia, and steven. In which they all have their over world sprites vs intro screen and music. So far i managed to get their proper teams to work in game, however, the over world sprites register as the standard elite 4 theme, and when challenging them they use the normal battle theme for a trainer. Also instead of saying "pkmn trainer red would like to battle" it would say something along the lines of "red shauntal would like to battle" Anyone know how to make it work so that the elite 4 trainers i want to put in have their proper sprites and music playing?

Examples of what i mean
https://www.youtube.com/watch?v=sWce-Ds3nLo (vs hilbert with elite 4 theme)

https://www.youtube.com/watch?v=Srvv803EvU8 (vs aaron with his theme)

https://www.youtube.com/watch?v=bPnOMvDZKFU (vs drake with his theme)

Youtubers like Rubycario, Swagsire, and Garchie showcased that modding the battles so that the over world sprites and music work properly.

An in depth or basic tutorial would be a great help!