I don't understand this sentence at all:
"This is one of the first times a map will specifically need a short game to unlock an achievement, along with the player needing a specific character, or another player needing a specific achievement"
There seems to be some kind of initial context missing. I just cannot make sense of it.
Reply: It is refering to the Dr. Jones Achievment. You need to play hell on short "as or with Harchier Spebbington or with someone who has this achievement."