1- Instalar Forge: https://files.minecraftforge.net/maven/net/minecraftforge/forge/index_1.12.2.html
le dan al que dice latest, Windows installer, skip el AD y se descarga, doble click al archivo e instalar cliente.

2- Abren la version que les instaló en su launcher de minecraft, se llama 1.12.2-forge o algo parecido.

3- Cuando les cargue el menu lo cierran (esto es para que cree la carpeta mods y se configure solo el forge)

MODS: ACUERDENSE DE ELEGIR LA ULTIMA UPDATE POSIBLE EN LA VERSION 1.12.2
- SECURITY CRAFT: https://www.curseforge.com/minecraft/mc-mods/security-craft/files
- JEI: https://www.curseforge.com/minecraft/mc-mods/jei/files
- Gravestone: https://www.curseforge.com/minecraft/mc-mods/gravestone-mod/files
- CreativeCore: https://www.curseforge.com/minecraft/mc-mods/creativecore/files
- PlayerRevive: https://curseforge.com/minecraft/mc-mods/playerrevive/files
- Dynamic Trees: https://www.curseforge.com/minecraft/mc-mods/dynamictrees/files
- VoxelMap: https://www.curseforge.com/minecraft/mc-mods/voxelmap/files/2777826
- Useful Backpacks: https://www.curseforge.com/minecraft/mc-mods/useful-backpacks/download/2854584
- UTeamCore: https://www.curseforge.com/minecraft/mc-mods/u-team-core/files/2807722
- Extra Utilites: https://www.curseforge.com/minecraft/mc-mods/extra-utilities/files
- Dismemberment: https://www.curseforge.com/minecraft/mc-mods/mob-dismemberment/files
- iChunUtil: https://www.curseforge.com/minecraft/mc-mods/ichunutil/files
- Biomes O' Plenty: https://www.curseforge.com/minecraft/mc-mods/biomes-o-plenty/files

Para instalar los mods van a su carpeta .minecraft y pegan los .rar en /mods