Originally Posted by statikXXX79
I'm not sure if it's against the rules to post a link to another board, but I would suggest using this to get the achievement. After countless hours of trying this without success, I joined one of this guys sessions and was able to get it within 30 minutes. He's in the Philippines, so no randoms ever join the match.
The guy running those is the man. I was able to get it done in a group with him yesterday. Took about an hour because the stupid map rotation sucked, but other than that went fantastically.