I used to be able to program a bit, years ago, but it was just dinking around with BASIC when I was in high school. I'm in school to relearn, but I'm no where near able to create my own program, anymore. I kinda wish I'd gotten into one of the Plan Z projects (you know, not been scared pancakeless by my own knowledge gaps) as a learning exercise, just to see how a project like that goes together.
An old book that I have on game design (c. 2002) has interviews with a bunch of experts in the field, including, it turns out, General British, himself. One of the interviews is with members of the studio that made Red Faction. I played the game, years ago, and it didn't have nearly the depth of content that CoH did, plus they had to create their own engine. One of the senior programmers estimated that game at well over 300,000 lines of code. Given Positron's and War Witch's descriptions of how messy the code had become over the last dozen years, it certainly sounds like a daunting task. I still say, though, that we likely have at least a half dozen people here who would be able to take the code in pieces and pick it apart. Given the part time nature of any project here, I have no illusions that it would be a quick project, but I'm game.