To touch on a couple points.
Still working on the prize thing. Hopefully have news later today.
Not changing my mind on the theme thing at this point. If you don't like it, don't make a pack. There really are a heck of a lot of options you could call apocalypse.
No one said anything about HQM. In fact, "You are not required to use any specific mods".
Definitive end means that there is a point in the pack where you have completed all the instructions given by the pack, ie, you're done. A vanilla word with a sign saying, "make a cake", would fulfill the requirements. I'm was trying to word it as loosely as possible to avoid restricting anything I hadn't thought of, but I realize it might be a bit unclear. Let me know if you can come up with any specific scenarios.