Bulltrue

Bulltrue is a Halo 3 Multiplayer medal that is awarded and achieved when a player kills another player who is in the act of an Energy Sword lunge. The lunge does not have to be directed at you, you can get a Bulltrue when someone is lunging at another player. It is represented by a brown diamond with a silver outline and a bull's head in the center. In the Halo 3 Beta, it was simply a red star, because the Energy Sword wasn't "supposed" to be found in the Beta's Custom Games and variants. It is easiest achieved with dual Maulers or a Shotgun. If you are lucky, an Assault Rifle would even work, if the enemy dies RIGHT AS the lunge occurs. It is actually a very challenging medal to get and attain.

The name originated during play testing of Halo 3, where a frequent response to a player shouting "bullsh*t" at his death was "No, bulltrue".