Bone Cracker

Were you looking for the Halo 2 Vista achievement of the same name? The Bone Cracker (Beat Down in Halo 3 and Pummeled in Halo: Reach) Medal is awarded for hitting and killing an opponent with a melee attack that isn't an actual assassination (melee attack from behind). It is available in all Multiplayer gametypes and has a Bungie difficulty rating of 3 out of 10.

It is represented by an inverted silver star with a dark green fist. After you kill an opponent with a melee attack, a message appears on your screen that says: "You beat down (player's name)". It is also awarded if a Covenant Energy Sword or Gravity Hammer is used to kill an opponent from the front. In Halo: Reach, after killing an opponent with a melee attack, the message "You pummeled (player's name)" will appear.

Tips

 * An easy way for two players working together to get the medal at the same time is to do the Double Beatdown trick.
 * A simple method for this achievement is to play Grifball.

Trivia

 * The "Green Fist" could be a reference to the Incredible Hulk, the Hulk uses his fists in battles and they happen to both be green. It may also depict a MJOLNIR Armor gauntlet.