Cleansing

30

Halo 3

Cleansing is an Halo 3 Achievement.

It is obtained when someone finishes the Campaign mission Floodgate on the Normal, Heroic, or Legendary difficulties, and gives 30 Gamerpoints to the player.

This Achievement is represented by a blue plate, with a roman numeral V (five) on it.

The level must be played from Mission Start in order to unlock the achievement. Playing in co-op will still earn the achievement.

	Achievements in Halo 3 Source
Campaign	Landfall • Holdout • The Road • Assault • Cleansing • Refuge • Last Stand • The Key • Return • Campaign Complete: Normal • Campaign Complete: Heroic • Campaign Complete: Legendary • Marathon Man
Meta-Game	Guerilla • Demon • Cavalier • Askar • Exterminator • Ranger • Vanguard • Orpheus • Reclaimer
Campaign Skulls	Iron • Black Eye • Tough Luck • Catch • Fog • Famine • Thunderstorm • Tilt • Mythic
Mythic Map Skulls	Assembly Skull • Citadel Skull • Heretic Skull • Longshore Skull • Orbital Skull • Sandbox Skull
Multiplayer	Graduate • UNSC Spartan • Spartan Officer • Two for One • Too Close to the Sun • Triple Kill • Overkill • Lee R Wilson Memorial • We're in for some Chop • Killing Frenzy • Steppin' Razor • Mongoose Mowdown • Up Close and Personal • Fear the Pink Mist • Headshot Honcho • Used Car Salesman • MVP • Maybe Next Time Buddy
Legendary Maps Multiplayer	Look Both Ways • Road Rage • Flag Dropped • Defend This • Came... From... Behind • Alas, Poor Yorick • Double Double
Mythic Maps Multiplayer	Hammer Time • Blades of Fury • Ghost Patrol • Post Mortem • ... Get the Horns • Awww, Too Bad • Killtacular • Have Fun Respawning • Save This Film • Delicious Brains • Zombie Repeller • Tank Dropper • Pull!
Vidmaster Challenges	Lightswitch • Annual • 7 on 7 • Brainpan