I went 27/1 once because I was playing IB, we were one kill away from winning and my teammate started shooting this one kid, who shot a sniper rifle back, which killed my teammate. Either there was lag, or this kid got uber lucky and ricocheted it off a wall and headshot me too. We won right after I died. No Mark of the Unbroken for me. I also went 33/1 in beta. Same thing happened where I got killed about 3 seconds before the match ended.