Halo 2
41 Achievements
1,000
Xbox 360
Vigilante
Stop a Killing Spree of another player
10
How to unlock the Vigilante achievement in Halo 2 - Definitive Guide
You should be able to get this during normal matches, just play a few and kill everyone you can, most likely someone will be on a killing spree sooner or later. If you're having trouble, start a match with a friend and let them kill you five times, then kill him.
This guide was translated automatically.
Just play multiplayer and you will get the achievement soon. If you have problems, you can boost with a friend. Let your friend kill you 5 times in a row, then take revenge