Firstly, go endorse the original and play it before this if you have not already: Halo 2 Ultimate Campaign Tweaks Remake
Big thanks to CarterKatJunEmile for both making this mod and allowing me to upload this version!!

All friendlies throughout the missions added by the original mod should now be unkillable, so no more worrying about struggling to keep them alive.

Uprising is Working!!!
I also added the available optional file from CarterKatJunEmile that adds Covy allies on Regret

Note: Due to the way the game engine works, allies will despawn if there is too much of them and they're out of your sight for too long. Take is slow and steady and if you want the marine/covenant army to build up, make sure they stay with you.

*How to Install*

-Backup your original map files
-Extract my file using 7zip
-Simply copy-paste these files to where yours are (mine would be: R:\SteamLibrary\steamapps\common\Halo The Master Chief Collection\halo2\h2_maps_win64_dx11)
-Run MCC with mods enabled and then hit play.

Base Game Versions:
Halo Reach
Halo CE
Halo 2 By RazePhalanx
Halo 3: ODST
Halo 3
Halo 4

Other Versions:
If there is a campaign overhaul you would like me to see if I can give the IA treatment, give a post and I can take a look. Please note though that I will not upload the changed files without the original authors permission.

*Troubleshooting*

Step 1: Check your MCC version
-If a MCC update was released after the most recent mod version then wait a bit and I'll update the mod to the latest version

Step 2: Load up a different mission
-Due to the way the MCC stores saves, clicking resume or loading up the same mission may cause crashing or the changes to not apply

Step 3: Validate your files then redownload the mod
-You can do this by: right-click on the MCC, choose properties, then local files, and then click "validate local files" this will scan for any corrupt or changed files and restore them to their default setting

Step 4: Uninstall and Reinstall the MCC
-If it comes down to it, simply try reinstalling the entire game to make sure everything is back to square 1 safely

Step 5: Abandon Hope all Ye Who Enter Here
-Post in the bugs section or comments what's going on and I'll take a look when I get time to