While playing on Survivors (Team Match) pubic, simply win the match with all of your team members alive. Team members can not die and be brought back. Can either be 2vs2 or 3vs3. I am also told that 2vs1 would work. CONFIRMED
This is easily boosted. With a 3 person group, simply let the two person team win, then have someone team up with the single person and win.
Otherwise stay close to your team and single out the other side.
Thanks Young Dreezy IV TillTheMorning