Hell's Janitor (Halo 3)

In Halo 3
In Halo 3, the Hell's Janitor medal is awarded for killing 10 Zombies in a game of Infection without dying. Progress for this medal does not carry over between rounds.

In Other Games
The Hell's Janitor medal also appears in the following games:


 * Halo: Reach
 * Halo 5: Guardians