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Coagulation AI Showdown | Endless 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!”


*Fully updated to function with the February 28th, 2025 patch of Halo: MCC.


My first ever mod for Halo 2 is now complete, and man is it a fun one! I have transformed Coagulation into a thrilling AI warzone with plenty of chaos that will keep you guys addicted for many rounds to come. Despite taking place in the campaign environment of Halo 2, I have modded the map to the best of my ability to feel like a multiplayer based experience, just like the original Coagulation. Infantry of many types and vehicles are all included. The battle is endless, and will go on for as long as you wish to play! Get ready to have a blast - and thanks for checking out my first attempt at a Halo 2 AI battle! I definitely enjoyed my time working on this project, so stay tuned for more H2 AI battles coming in the near future!



After subscribing to this project and letting the download complete, launch the MCC with anti-cheat disabled. Navigate to campaign, then Halo 2: Anniversary, and in that menu there should be an option that has appeared called "Coagulation AI Showdown | Endless AI War". Click on that option, and in the next menu select “missions”. There are two missions included in the mod. Both are identical maps, with the only difference being the side you are allied with, and the character you play as. To play as the Master Chief against the Covenant, select the UNSC option. To play as the Arbiter against the UNSC, choose the Covenant option. The experience is highly customizable with players being able to choose the game difficulty, as well as which Skulls are active for the session. All of the Skulls are fully functional, just like in the campaign. After selecting your options, launch the level and have a blast!

• An endless AI war that will go on for as long as the game lasts.
  
• Respawning placed weapons throughout the level. No need to worry about only being able to pick these up once.
  
• A large variety of AI types and corresponding gear that they spawn in with.
  
• Respawning placed vehicles at each base. They will respawn even after being destroyed.
  
• *NEW* Control switches that allow you to determine what AI squads spawn. Choose from over 15 unique AI squads. You are the boss and are in total control.
  
• *NEW* Spectator tools in the central tunnel - perfect for players that like to watch AI battles from the sidelines.
  
• Pathfinding for AI everywhere.
  
• Aggressive AI behavior orders for many squads that make the AI head for the middle of the map and engage the enemy quickly. Some squads will approach the battle more tactically.
  
• Carefully scripted respawning to make sure the overall AI intelligence on map does not diminish due to overpopulation.
  
• Play as the Master Chief when fighting alongside the UNSC, and Arbiter when fighting alongside the Covenant.
  
• Respawning Overshield and Active Camo placed in the center of the map.
  
• AI controlled enemy Arbiter/Master Chief on the opposing team for each map version.
  
• Respawning grenades and ammo pickups at each faction’s bases.
  
• Skulls fully functional from Campaign that allow players to further manipulate the experience as much as they want!
  
• Specialist squads for each team that respawn less often.

…..Plus a lot more to discover and enjoy!




Originally I had wanted this map to function just like my Halo 3 AI Battles, where you can just fire the map up in Forge or Custom Games and have a blast. Halo 2 unfortunately strips out all AI, and all AI related scripts when compiling maps for multiplayer. So I had no choice but to move the experience over to Campaign. After getting the map running, I dug through the Bungie scripts and found some variables that would fit this map nicely, such as code to get weapons, vehicles, and powerups to respawn similarly to how they do in multiplayer. (Otherwise all placed items will only be able to be picked up once per game, and that would suck.) After tinkering with these for some time to get everything working as I wanted, the final result was actually pretty awesome. I have more cool items planned for this map in the future, but as it stands I feel the map works very well.

• Dropship drops NOT included with this map due to invisible barriers that prevent these ships from entering and leaving the level. This will be fixed in a future version of this map. AI will spawn near the bases ready to go in the meantime. The result is actually faster engagement times, with plenty of chaos.
  
• The UNSC units are easy to kill when playing as the Covenant. For more of a challenge with the UNSC - either raise the map difficulty, turn on skulls, or opt for non-precision weapons.