User blog:Hentai Joey/Metal Gear Quest Help. Plz?

Ok, the thing is, I downloaded the quest, but I can't join it -.-

This is getting annoying. I "read" on the description somthing about HR4. Since I don't know any japanese, I thought it was to clear every stinking HR4 quest...But nope.

So what do I have to do to start that dang quest?!