So there is a Girl's Frontline Multiplayer Menu.
(Wallpaper + SoundTrack)

this is the background:
.

the background will be the mp_menu_soldiers.iwi file.

put the file in t6r/data/images and it would be good.

For the sound track, pkease listen me carefully

go in your /sound game file
(for example pluto_t6_full_game/sound)

Then change the file named mpl_code_post_gfx.all.sabs
(please make sure that you can keep the original sound track if you don't like mine (for example you can keep the original file on your Desktop)

check the SoundTrack: https://youtu.be/U7-ycaBU1xM

links:

mediafire: https://www.mediafire.com/file/041fus7yx52gygn/Girl%2527s_Frontline_MP_Menu.zip/file

MEGA: https://mega.nz/file/w6gEwJoS#Q0nMqXySfgAza7XxZJK1IUSiAScdS6ybboW2_s5mYmg

I hope you'll enjoy it!~

F5dark

(if you have a problem I'll answer as fast as I can)