At multiplayer menu or mid game when dead at the load out screen hit triangle to pull up your friends list. use the directional keypad and scroll to the right a couple of times. You will see Friends list, followed by players recently met list, followed by elite roster list. Once you see the elite roster list you will see everyone in Roster 3. Spam friend requests, send messages asking if they can pick you up, etc. Make sure you put a 30 somewhere in the subject or body or you will get ignored since we can get a lot of friend requests from folks that just got pub stomped.