Hrmm, I got these nifty medals yesterday:
Perfection!
Win a Slayer game without dying with at least 15 kills.
Invincible!
Kill 30 opponents in a row without dying.
Untouchable!
Kill 25 opponents in a row without dying.
Rampage!
Kill 20 opponents in a row without dying.
Running Riot
Kill 15 opponents in a row without dying.
nice i have never made it to rampage this one shotty sniper game i died only once the whole game