When the guide says to put the matches on 30 mins and it takes about 3-5 hours I would guess it means 6-10matches that you need to host. I only say this because I did the 360 version already and it unlocked very easily from what I remember. I can't imagine 5 other people waiting in a room 3-5 hours so I can get my host achievement.
I'll check out my time stamps when I get a chance and see if this is the case.
Last edited by newbsicle; 01-28-2010 at 12:06 AM.