1- Install Map Editor
2- Place "Favela.xml" on GTA V main Folder
3- Place all the other files on:
C:\Program Files (x86)\Steam\steamapps\common\Grand Theft Auto V\mods\update\x64\dlcpacks\mpheist\dlc.rpf\x64\levels\gta5\props\lev_des_mp_dlc.rpf\

4- In game, open MAP EDITOR, go to LOAD MAP>XML and type "Favela"
5- In game, go to Map Editor Settings and: Set objects Viewing distance to max.