Good day how are you 
my name is miguel
just extract it to your LCS user files
this will only work if you have the pc edition of liberty city stories 
i saved it at the second island with no missions completed at that island 

IF YOURE SATISFIED WITH MY WORK PLEASE CONSIDER SUBSCRIBING TO MY YOUTUBE CHANNEL FOR MORE GAMEPLAY MODS AND SAVE GAMES 
ENJOY YOUR DAY 
MIGUEL