The "Complete mission pack" is a compilation of every mission Diedel hosts on his website, organized by author. Because of that, if I find a good mission, I know which author to compliment, and I love pretty much every one of yours! If you have missions to add to it, that would be awesome. I hope Diedel would be up for adding them.
It's available in the downloads section, near the bottom. If I tell every player to get the pack, it's a nice way to prevent people from going "Oh, you don't have this mission? Here let me find it for you." because then we all know everybody has the same missions.
EDIT: I keep calling missions "maps", and it may have confused some people.