RoC Campaigns but much harder

Has anyone ever created a harder difficulty level for the original Reign of Chaos campaigns? I really liked that campaign but I wanted more of a challenge. I was trying to make a harder difficulty level myself but I realized I don't know anything about the campaign editor or much about programming in general so I wasn't making much progress.

For instance, on the levels where you can't build bases, I was adding in monsters that would be created every 60 seconds or so to harrass you like in the Caravan mission for the orcs (Orc 2). I was adding in more waves on the missions where you have to survive for a certain amount of time. Raising the levels of all enemy heroes throughout the game and giving them better items. There were no changes to mission requirements, just additions to make sure that every mission was very hard.

If anyone knows of a project like this that's ever been done, please let me know. If not, can anyone recommend a very difficult custom campaign?