Mmmm... Brains

The Mmmm Brains Medal is awarded and achieved for killing 10 Humans in a row as the Zombie without dying. It is available in all Halo 3 Multiplayer Infection gametypes. It is represented by a bronze medal with a skull. When someone gets this medal the announcer will announce "Mmmm...Brains" in a low, eerie, and grim voice. That may be a Homer Simpson reference. This medal will show up in an infection game instead of a Killing Frenzy Medal, rather than appearing with it like the Vehicular Manslaughter Medal. It is thought to be one of the hardest medals to obtain because of the fact that when a human dies, they become a zombie. It can only be obtained in a game with 11 or more players.

This medal is "officially" obtainable in the Double EXP Weekend Playlist Living Dead to be viewed on bungie.net.