There is an award for killing players with Sniper Rifles, Plasma Grenades, vehicles, and melee attacks from the front and back. The third Category is 'special kills' and these are awarded on the basis of special ways a player kills another player.

Killing Sprees are given for five kills in one life, Running Riots for ten, Rampages for fifteen, Berserkers for twenty, and Overkills for twenty-five. 'Spree' medals are awarded for a number of kills a player achieves without dying.

Double Kills for two, Triple Kills for three, Killtaculars for four, Kill Frenzies for five, Killtrocities for six, and Killmanjaros for seven kills. There are 23 medals available to win, which fit into four general categories 'Consecutive kills' are the streak of medals which acknowledge a number of kills within four second of each other. Medals make their first real appearance in Halo 2. However, none of these medals have physical representations, and Xbox Live has no way of recording them as the game does not utilize Xbox Live. The Announcer will announce Double Kills, Triple Kills, Killtaculars, as well as Killing Sprees and Running Riots. Medals do not appear in their physical form in Halo: Combat Evolved, but some of their accomplishments are occasionally listed despite this.

Halo 3 achievement overkill