Step 1: In your GTA V Main Directory, create a new folder and name it 'mods'.
Step 2: Now go into the 'mods' folder, create a new folder and name it 'update'.
Step 3: Now you need to go into your FiveReborn Main Directory, go into cache > game and copy the "update+update.rpf_64ddef8f58ad064745fb18879b309a6d8b0f346b" or something similarly named if it's different for other users. This file should be 446,594 KB and should be the first file below the "Social%20Club%20v126.96.36.199%20Setup" application.
Step 4: Now go back to your GTA V Main Directory and paste the "update+update.rpf_64ddef8f58ad064745fb18879b309a6d8b0f346b" into your mods > update folder you made earlier. IMPORTANT!!!: Rename the file to 'update.rpf'.