There will be different folders with whatever you choose. I’ve made alternative soundtracks based on what you want to be played first every time you open the game. I’ve made three music selection sets. Big appreciation and credit to the composers here: John Williams, Kevin Kiner, Ludwig Goransson, Gordy Haab. Also thanks for the GT tutorials.
*Note. Theres a chance that this won't work with the latest Steam/GoG patch since they totally screwed up.
*Also please backup your shell.lvl in case for some reason want to revert back
Installation: Just place your chosen shell.lvl and shell.bnk to “…Star Wars Battlefront II\GameData\data\_lvl_pc\sound”
Here are the names of all songs used in no particular order:


Selection 1: John Williams, Gordy Haab, Mark Grisky

Return to Tatooine (Episode III video game menu track)
Goodbye Old Friend (ROTS)
Imperial Suite (Rogue One)
Alliance Assembly (ROTJ)
Battlefront II 2017 Finale
Imperial Battle (Force Unleashed)
War Plans (TPM)
The Tide Turns (TPM)
Anakin is Free (TPM Special Edition)
Departing Coruscant (AOTC)
Finale (Aotc)
Star Wars Battlefront 2 2017 Menu Music
Encounters on the Battlefront (BF 2017)
Hope Suite (Rogue One)
Episode V End Credits (ESB)
Testing Allegiance (Solo)
Force Unleashed End Credits
Juno Eclipse Love Theme
The Death of Yoda (ROTJ)
Force Theme (ESB)
The Imperial Probe/Aboard the Executor (ESB)
Jedi Master Revealed/Mynock Cave (ESB)
Walker Assault (BF 2015)
Imperial Advance (BF 2015)
Rebel Resistance (BF 2015)
Battle of the Heroes (ROTS)
Selection 2: Kevin Kiner/Ludwig Goransson/Various
Star Wars The Clone Wars Main Title & A Galaxy Divided (CW)
This Ends Now - TCW Season 5 Finale Trailer
Ahsoka Is Back (CW)
Ahsoka and the 501st (CW)
Ahsoka Lives (CW)
Burying the Dead (CW)
Crash Course Moon (CW)
A Friend (Mandalorian)
Back Together (Mandalorian)
Yoda’s Journey Ends (CW)
The Finest Troops (CW)
Republic Cruiser (CW)
The Clones (CW)
Season 3 Trailer (CW)
This Ends Now (Trailer)
Season 7 Trailer Music (Trailer)

Selection 2: Kevin Kiner/Ludwig Goransson/Various

Star Wars The Clone Wars Main Title & A Galaxy Divided (CW)
This Ends Now - TCW Season 5 Finale Trailer
Ahsoka Is Back (CW)
Ahsoka and the 501st (CW)
Ahsoka Lives (CW)
Burying the Dead (CW)
Crash Course Moon (CW)
A Friend (Mandalorian)
Back Together (Mandalorian)
Yoda’s Journey Ends (CW)
The Finest Troops (CW)
Republic Cruiser (CW)
The Clones (CW)
Season 3 Trailer (CW)
This Ends Now (Trailer)
Season 7 Trailer Music (Trailer)

RC Music Mod:

Vode An (Brothers All)
Vode An Remix by SKim
Vengeance
Brother’s Rage
Kart Tor (One Heart of Justice)
Musras Impmrchelevator Lp
Briefing
Sacrafice
Mandalorian theme
Escape From Naboo (Republic Commando Version)

special thanks to John Williams and Jesse Harlin

BF1 PS2 OG Music