Install Halo: The Master Chief Collection on PC
Install the Halo MCC mod tools or the specific mod manager required by the mod
Back up your game files and save files
Check the mod’s instructions and compatibility with your MCC version
Download the mod from a trusted source
Extract the mod files if they are compressed
Place the mod files in the correct Halo MCC directory or mod folder
Replace or merge files only as instructed by the mod author
Launch the game through the required launcher or mod tool if needed
Enable the mod in the mod manager if applicable
Start the game and verify the mod is active
Disable anti-cheat only if the mod requires it and you are using offline or custom game content
Avoid using mods in matchmaking or online play
Restore original files from backup if the game fails to launch or the mod does not work