I recently made a program that will allow you to force checkpoints during the campaign of the Halo games on PC. It includes the MCC, the original CE PC port, Custom Edition, and Halo 2 Vista. I know there's a checkpoint manager that already exists, but I wanted to make something simpler and also wanted to learn more about programming something that plays around with memory. I will post a GitHub link below. Please let me know if you run into any issues with it!
Please also make sure you disable any relevant anti-cheat software before using it.
Thanks, I actually thought my comments weren’t great at all in this program, so I’m glad somebody thinks otherwise. 😅