Subscribe to download
Resuscitation AI Battlefield | Endless Halo 3 AI War

“The Covenant and UNSC are heading out for a major conflict in a familiar gulch. Brace for carnage. Choose your side, select your tactic, and take the fight to the enemy! My addictive AI war sandbox from Halo 2 - reimagined and expanded with the power of Halo 3!”

*Mod updated to be compatible with the MCC patch released on September 17th, 2025. Everything is fully functional.*

Hey there everybody! I am very pleased to be releasing my first ever AI mod on a totally custom made map! First things first - a major thanks to Aerial Dave for his excellent recreation of Halo 2’s Coagulation for Halo 3. It really is a beautiful recreation and a perfect play space for a large scale AI war. That’s where I come in! I have managed to create an extremely fun battle for you guys, based on the popular Halo 2 AI battle I published back in June. That map served as a great inspiration and foundation for this mod, which takes it to a whole new level with H3’s improved engine and tech at my disposal. The result is an awesome AI experience that I know all of you will enjoy! I have packed many varieties of AI infantry and vehicle squads for each team into this map, that you guys can mix and match via my controller button system for hours of AI Battlefield fun! Enjoy!

Interested in Aerial Dave’s original version - which is perfect for PvP? See here: https://steamcommunity.com/sharedfiles/filedetails/?id=2898876653

Want to play the version of this mod I made for Halo 2? See here: https://steamcommunity.com/sharedfiles/filedetails/?id=2996388287

• An endless AI war that will last as long as your session goes.
  
• Pathfinding everywhere.
  
• Over 15 unique AI squads of Infantry and vehicles, with more than 100 overall individual combatants that can optionally take part in the battle, all fully under your control via placed switches in each base. You are the boss.
  
• Custom scripted dropship deployments for many of the units on each team.
  
• Custom objects made by members of the community and me in the Forge menu.
  
• Flyable Pelican and Phantom placeable in Forge.
  
• Hidden scarab gun Easter egg to find.
  
• A vast array of AI types and weapons they carry.
  
• An optional Sentinel faction that you can enable/disable at any time. They will attack everyone and anyone!
  
• AI that spawn near the bases ready to go (without dropship), for quick engagements.
  
• Faction appropriate scenery, weapons, and vehicles at each base.

...and much more to discover!



After subscribing to the mod, allow the download to complete. After, launch MCC with anti-cheat disabled. Navigate to creative or custom games, select Halo 3, and then choose the map “Resuscitation AI Battlefield” in the modded maps section. Join the GREEN team to be allied with the UNSC forces, PURPLE to side with the Covenant, or GOLD to fight alongside the Sentinels. Select your settings as you see fit, and then load in as usual. You should be good to go!


- Resuscitation H2 Coagulation Remake by Aerial Dave. Find it here: https://www.nexusmods.com/halothemasterchiefcollection/mods/2345
- Heavy Fuel Rod Shade by MythicJaqui. Find it here: https://www.nexusmods.com/halothemasterchiefcollection/mods/1464
- AI Spartans made by XxMasteroofxX. Find them here: https://www.nexusmods.com/halothemasterchiefcollection/mods/1846
- Scarab Gun made by clonecam117. Find it here: https://www.nexusmods.com/halothemasterchiefcollection/mods/2109
- Upgraded ODST/Reach themed Drones by Calantorn. Find them here: https://www.nexusmods.com/halothemasterchiefcollection/mods/1513
- Sentinel Captain and Eliminator Beam by Just Alex. Find them here: https://www.nexusmods.com/halothemasterchiefcollection/mods/1624



*Please consider reading the “how to” thread concerning the AI switches pinned above. You will be confused as to their functionality without reading it. Also, please be careful about having too many of the squads enabled at once. This can easily overstress the Halo 3 AI engine, and lead to behavior anomalies with the bots. The H3 engine can only support approximately 45 bots active and alive on map at any given time. If you do see AI starting to act abnormal, you probably overloaded the AI engine. These symptoms include: bots standing still, bots not noticing enemies, bots not pathfinding properly, item visual flickering, orders not being followed, and more. This is only temporary however. As soon as you kill off some of the bots, normal functionality will return. To prevent this from happening again, consider shutting off some of the squads.

**Co-op is NOT supported with this mod. Only the host will see AI behaving properly. On all clients, there will be visual anomalies and desync.

***For players that want to spectate the AI battle and not get involved themselves, I recommend going into both the player and editor traits menu in settings, and setting Active Camo to the “good camo” setting, so that AI will not pay attention to your player or the editor. Also consider turning on permanent overshields and damage invulnerability.

• Making the AI enter the driver seat of the AA Wraith will result in a game crash.
  
• Some items do not appear to have names in the Forge palette. These objects were never designed to be placed in Forge, which causes the issue.
  
• Some Brutes and the ODST’s are slow to progress into the fight. This is intentional and by design, as I wanted some of the units from both sides to approach the fight more tactically.
  
• Covenant Phantoms are not destructible. This was also intentional, to keep them balanced and even to the UNSC’s Pelicans.
  
• There are no death barriers present on the map. So, if you get beyond the invisible walls, you need not worry!

- Please read the “how to” thread pinned below to learn about which squad each button controls and how to use them.

- There are massive amounts of randomness behind each and every AI that is selected to be deployed into the battle, as with all my previous projects. These are the rank of the AI, and the gender as well in the Marines’ case. Weapons are also custom weighted, with power weapons being less common. For the Covenant, the same traits apply. You’ll see less higher ranked types of all the Covenant species, and power weapons for each faction are less common. The depth is massive here. This gives you a great amount of replay ability, with no two battles being the same.