Covenant:
I have a feeling I'm going to look silly for not catching the actual acronym, but by GTA do you mean Grand Theft Auto?
Sounds like you're not looking silly at all, and you've caught the actual acronym :D. At the moment, I've drawn inspiration from the fact that all the literature on the wikia regarding HD verse games has referred to percentages. I don't like working with linear resolution, so I'm using dice pools and target numbers. I don't expect to be changing that any time soon. And as implied by message 4 in this thread, talk about pre-existing systems is off topic.