About this mod
Halo 3: Combat Evolved is a mod for Halo 3: ODST that re-creates the Halo: Combat Evolved Multiplayer and Campaign experiences within Halo 3: ODST.
- Requirements
- Permissions and credits
- Mirrors

Halo 3: Combat Evolved is a mod for Halo 3: ODST that re-creates the Halo: Combat Evolved Multiplayer and Campaign experiences within Halo 3: ODST.
IMPORTANT! Gamma settings
The maps in the mod were all designed for a gamma value of 5.5/6 as those are the values that closely match the visuals of the mod tools, if you feel like the levels look too dark then try switching your gamma to 5.5/6 in the video settings for Halo 3: ODST.
Information
The mod is HEAVILY work in progress, bugs, issues and missing content is to be expected. I am the only person working on this mod currently and remaking all levels from Combat Evolved, polishing them, ai placement, scripting and more takes a huge amount of my time so there is bound to be issues I overlook during development. If you found any bugs or have general feedback make sure to let me know!
Because this mod utilizes the Halo 3 ODST engine, you can play through Halo: Combat Evolved's campaign with up to 4 players in online Co-Op. A few select cutscenes have also been modified to account for the increased player count.
While I wanted the mod to stay as close as possible to Combat Evolved, I eventually made the decision to introduce cut content from Combat Evolved as well as a few custom (non intrusive) encounters to spice up the campaign and give it a fresh coat of paint.
Cut content such as encounters, scripts, items and set pieces have been re-added.
How to Play
- Extract the .zip and move the "Halo 3 Combat Evolved" folder to a dedicated MCC mods folder
- Open Windows Explorer and go to the following directory:
- %USERPROFILE%\AppData\LocalLow\MCC\Config
- Inside of that folder, create a txt file called "ModManifest.txt"
- In ModManifest.txt, add your dedicated MCC mods folder's full path and save
- Halo 3: Combat Evolved should now show up in the MCC menu under Halo 3: ODST's Campaign, Multiplayer and Firefight when running without anti-cheat on!
If you want a visual tutorial, click here
Content
The goal of this project is to remake every single Campaign and Multiplayer level from Halo: Combat Evolved, for now the list of available content is down below. Remember, this project is heavily work-in-progress and the list of available levels will continue to grow overtime.
Campaign
- The Truth & Reconciliation
- Keyes
Multiplayer
- Danger Canyon
- Chasm 34 (Chiron TL-34)
Firefight
- Hangar A-2
Known Issues
General
- None
Campaign
- Projectiles have a chance to go through "4 way" hallways in The Truth & Reconciliation
- Outro music and foley doesn't play in The Truth & Reconciliation
- Switching Zone Sets can cause a drop in frame rate for half a second
Multiplayer
- Killfeed does not show
- Scoreboard does not show
Firefight
- Sentinels, Flood Stalkers and Flood Tanks do not spawn and can soft lock the session
- Many issues with 4+ player firefight
- Medals are off-screen