Updated 03-07-2014 01:44 AM
THIS IS MY GUIDE FOR THIS ACHIEVEMENT:
I have found this achievement to be some what tricky. If you have a few freinds who want to play and your in a party, invite only one person at a time to play as this can not be done by inviting a party to play. So just choose one friend and view his/her profile and invite them thru their profile. Then others may do the same thing and you can piggy back the achievement.