Over kill triple snipe with one bullet. Not amazing, just good luck. Also an extermination with only a triple kill that took nine seconds in team slayer. I realized the only way that could happen was the first two people I killed had a spawn time penalty for betrayals, so the other two i killed with a sticky and dmr shot gave me an extermination. If the first two people werent being jerks, I.never would have gotten it.
[Edited on 01.07.2012 8:53 AM PST]