to anyone else that are trying to use this mod the xmas use the 2.2.13 (some mods for srb2 are broken in 2.2.14 and 2.2.15)
Heres the github link:
https://github.com/STJr/SRB2/releases/tag/SRB2_release_2.2.13
Viewing post in [SRB2] superiorfoxv2 comments
i was able to get both the character and xmas working now:
https://www.mediafire.com/folder/sia1cp1wjec8t/srb2+superior+fox