Hello! I upgraded to a new computer which meant I had to go through a reinstall of all the mods. That also meant I had to reread the tutorial for installing the mod as well as my old posts! SO finally I decided to go ahead and make a video tutorial! It's not very user friendly and I apologize in advance if I am not the best tutorializer ever, BUT this is confirmed working on two PCs for both Ruby's Rebalanced Reach and Prometheus!
@BestSakuya if you see this post and people verify it's working (it should) and you want to add it to your own sticky so it doesn't get buried in comments that'd be great! :)
Disclaimers: I have tested Prometheus in pre-release, completed the entire game on Legendary solo + deathless, have completed the game a 2-digit number of times, and have watched every single piece of public footage on YouTube and Twitch as of 4/19/21. If you've uploaded to YT or streamed it on Twitch, I've seen what you've played. All this feedback will be written from the perspective of both my own play and other players', assuming the latter makes sense for Prometheus. I will also be noting whatever errors and bugs I can recall. This will not take into consideration known fixes in development or technical limitations, like tag limits.
With that said, here's a shortish doc with specific issues I see in the mod currently: https://pastebin.com/8ZGW7wev
Edit: If anyone wants to continue playing Prometheus (or any other Season 7 Halo Reach mod), please look here and here. It's not exactly user-friendly, but it's how you get access to Season 7 files to run these mods until Reach is made officially moddable by 343.
Edit 2: For when it eventually falls off the front page, another person made a video guide covering the guide to getting season 7 content back here. Direct video link here. So props to him.
I'm late to the reply, but I beat it with Iron after it was released. I'm not even the only one to do it; a guy on YT named titansbeat cleared the whole mod except the final mission deathless + Legendary with far less familiarity or playtime than me. Prometheus has an extremely powerful sandbox for the player to use, and if you use it right and really learn how to use the new weapons and flex the massively boosted player physical stats then enemies on Legendary are honestly less punishing than in vanilla Halo games.
To be fair, though, I did cheese the space battles because I dislike them as well as the hospital ambush because it's probably one of the only legitimately unfair fights in the mod. But otherwise I fully cleared the game, doing all engagements, with Iron.
Downpatching Halo MCC just for this mod has been one of the most frustrating and time consuming efforts I've ever experienced and all I accomplished was wasting my entire day as the mod still refuses to launch. I give up and walk away disappointed at the missed potential of this mod.
please update this and put it on the steam workshop i cannot for the life of me get the season 7 downgrade to work correctly its all downgraded correctly (using the july 25 build of mcc) but the mod still doesnt work
Since this got knocked off the first page of comments, I'm repeating it.
All Halo Reach campaign mods are broken as of Season 8. While I can't speak for any particular mod devs, they're probably not coming back until Reach gets mod tools due to every update completely breaking every mod. Evolved, Rebalanced, Prometheus, they're all subject to this.
If you want to play any of these mods again, you can download Season 7's game files via Valve's steamctl tool. To do that:
Once you've done all that, you'll have all the S7 files. Just cut the campaign files and paste them into the S7 base MCC files, then download whatever custom campaign you want to play and put those maps into the S7 files. (Edit: You may need to move shared.map out of any subfolders in your mods and put it into your main maps folder. Not sure what causes this to sometimes be required.) After that, you're technically done. But I'd recommend also naming the files something like this inside your steamapps in order to make it easy to flip the names like this. If you do that, then Steam will always launch whatever's just called "Halo The Master Chief Collection" so you can easily pick when you want to play a Reach mod and then revert it when you want to play normal multiplayer.
I don't know how long the Season 7 repo will still be around, though, so if you get any errors with steamctl saying that the repo's not found, then you'll just have to "acquire" the S7 files some other way. I can't offer any advice on how to find them if that happens.
@Kataiser Thank you very much for the tutorial, boss - I really enjoyed Ruby's Rebalanced Reach and I really, really wanted to try this mod - was pretty heartbroken when I found out they didn't work anymore. Someday I hope we can get those mod tools.
Edit: In case it helps anyone else - the core points of these steps absolutely work, but my install went a little differently. This is mostly PEBCAK(Problem Exists between Chair and Keyboard) but others may have the same issues so here is how my install went. In other words, don't do this exactly like me, but maybe this will help if you get confused trying it. If Kataiser responds verifying some of my statements or corrects me on this I will edit this so it is cleaner.
1) First I installed python, opened CMD, and used cd to navigate to a Master Chief Collection S7 folder I had created, as the directions indicate. 2) I was unable to run pip from command line after installing python. Running pip command resulted in a command not recognized error, and running python command resulted in the Windows Store opening up to a Python install page. Looking back on this I assume I needed to use cd command to move to python's install directory before attempting the command. But in this case I went ahead and installed the Windows Store Python app. 3) Now running pip install steamctl worked, but got a bunch of errors about scripts python needed to install steamctl - This is where I figured out I had to cd to Python before installing. In my case I used C:\Users\YourUserName\AppData\Local\Packages\PythonSoftwareFoundation.Python.3.10_qbz5n2kfra8p0\LocalCache\local-packages\Python310\Scripts but I imagine wherever that Script folder exists in your system would work. This time the install ran without issue! 4) Then, I tried to cd back to my Master Chief Collection S7 folder, but found I could not run the steamctl command, again due to the command not being recognized. 5) I ended up just cd back to the Scripts folder and ran both of the steamctl installs there with no issue. In retrospect it is possible if I had run the python command again while I was in my S7 folder, it might've worked fine.
Yo, I think I know what happened there. It looks like when you installed Python the installation didn't update your PATH variable to make the python command available from anywhere. Adding Python to your PATH probably an option during the install, but I haven't done a clean install in probably a decade so I can't say that for sure. Your workaround was definitely a good way to get around that, but you can add your Python and Python\Scripts folders into your PATH environment variable manually and what I wrote above should work. Either that or what you did both work.
It is, but it is also the only way to play the mod. At least there IS an option. A couple days ago I went and uploaded a video tutorial showing exactly how I got it working. Feel free to check it out sir!
Hey I have been a huge supporter of this mod for a good time now and would love to replay it without having to do the whole Python code, I was just curious if you planned on updating this? I know I would love to see it come back.
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How To Downgrade Halo MCC to Season 7 (How to Play Halo Reach Overhaul Mods!) - YouTube
@BestSakuya if you see this post and people verify it's working (it should) and you want to add it to your own sticky so it doesn't get buried in comments that'd be great! :)
With that said, here's a shortish doc with specific issues I see in the mod currently: https://pastebin.com/8ZGW7wev
Edit: If anyone wants to continue playing Prometheus (or any other Season 7 Halo Reach mod), please look here and here. It's not exactly user-friendly, but it's how you get access to Season 7 files to run these mods until Reach is made officially moddable by 343.
Edit 2: For when it eventually falls off the front page, another person made a video guide covering the guide to getting season 7 content back here. Direct video link here. So props to him.
titansbeat cleared the whole mod except the final mission deathless + Legendary with
far less familiarity or playtime than me. Prometheus has an extremely powerful sandbox for the player to use, and if you use it right and really learn how to use the new weapons and flex the massively boosted player physical stats then enemies on Legendary are honestly less punishing than in vanilla Halo games.
To be fair, though, I did cheese the space battles because I dislike them as well as the hospital ambush because it's probably one of the only legitimately unfair fights in the mod. But otherwise I fully cleared the game, doing all engagements, with Iron.
its all downgraded correctly (using the july 25 build of mcc) but the mod still doesnt work
All Halo Reach campaign mods are broken as of Season 8. While I can't speak for any particular mod devs, they're probably not coming back until Reach gets mod tools due to every update completely breaking every mod. Evolved, Rebalanced, Prometheus, they're all subject to this.
If you want to play any of these mods again, you can download Season 7's game files via Valve's steamctl tool. To do that:
The last two commands will both ask for your Steam login details to verify that you own the content.
Base game manifest to confirm details
Reach manifest to confirm details
Once you've done all that, you'll have all the S7 files. Just cut the campaign files and paste them into the S7 base MCC files, then download whatever custom campaign you want to play and put those maps into the S7 files. (Edit: You may need to move shared.map out of any subfolders in your mods and put it into your main maps folder. Not sure what causes this to sometimes be required.) After that, you're technically done. But I'd recommend also naming the files something like this inside your steamapps in order to make it easy to flip the names like this. If you do that, then Steam will always launch whatever's just called "Halo The Master Chief Collection" so you can easily pick when you want to play a Reach mod and then revert it when you want to play normal multiplayer.
I don't know how long the Season 7 repo will still be around, though, so if you get any errors with steamctl saying that the repo's not found, then you'll just have to "acquire" the S7 files some other way. I can't offer any advice on how to find them if that happens.
Edit: In case it helps anyone else - the core points of these steps absolutely work, but my install went a little differently. This is mostly PEBCAK(Problem Exists between Chair and Keyboard) but others may have the same issues so here is how my install went. In other words, don't do this exactly like me, but maybe this will help if you get confused trying it. If Kataiser responds verifying some of my statements or corrects me on this I will edit this so it is cleaner.
1) First I installed python, opened CMD, and used cd to navigate to a Master Chief Collection S7 folder I had created, as the directions indicate.
2) I was unable to run pip from command line after installing python. Running pip command resulted in a command not recognized error, and running python command resulted in the Windows Store opening up to a Python install page. Looking back on this I assume I needed to use cd command to move to python's install directory before attempting the command. But in this case I went ahead and installed the Windows Store Python app.
3) Now running pip install steamctl worked, but got a bunch of errors about scripts python needed to install steamctl - This is where I figured out I had to cd to Python before installing. In my case I used C:\Users\YourUserName\AppData\Local\Packages\PythonSoftwareFoundation.Python.3.10_qbz5n2kfra8p0\LocalCache\local-packages\Python310\Scripts but I imagine wherever that Script folder exists in your system would work.
This time the install ran without issue!
4) Then, I tried to cd back to my Master Chief Collection S7 folder, but found I could not run the steamctl command, again due to the command not being recognized.
5) I ended up just cd back to the Scripts folder and ran both of the steamctl installs there with no issue. In retrospect it is possible if I had run the python command again while I was in my S7 folder, it might've worked fine.
Hope this helps someone! :) Oh, and mod works :D
A couple days ago I went and uploaded a video tutorial showing exactly how I got it working. Feel free to check it out sir!
(12) How To Downgrade Halo MCC to Season 7 (How to Play Halo Reach Overhaul Mods!) - YouTube