It means when you kill an enemy and that enemy is killing your teammate, thus you rescuing him.
Mw2 doesn't have kill confirmed.
By shooting them in the head.
kill them :/
kill a dracowenprey
Yes
anything used to kill can count as a kill
depends if you hit him with the launcher and up close
Select it as your kill streak reward. Then you must kill 25 people without dying.
Kill 3 enemies by shooting C4.
Kill 15 enemies using C4.
In MW2 it cost a 25 kill streak
It is a joke you get it when you get "payback" on someone you kill.