The WelDuh!

List of the New Achievements for Title Update #2:

Vidmaster Challenge: Annual
After 9/25/08, complete Halo on 4-player Legendary LIVE co-op, with Iron, and everyone in Ghosts.
0 G

Double Double
On a Legendary map, get two Double Kills during any ranked or social match.
25 G

Alas, Poor Yorick
On a Legendary map, get 3 Oddball melee kills during any ranked or social match.
25 G

Came… From… Behind
On a Legendary map, get 3 assassinations during any ranked or social match.
50 G

Defend This
On a Legendary map, get a flag melee kill during any ranked or social match.
50 G

Flag Dropped
On a Legendary map, get 2 flag carrier kills during any ranked or social match.
25 G

Road Rage
On a Legendary map, get 5 Warthog chaingun kills during any ranked or social match.
25
Locked

Look Both Ways
On a Legendary map, get a Splatter Spree during any ranked or social match.
50 G

Hammer Time
On Assembly, get 5 Hammer kills during any ranked or social match.
25 G

Pull
On Citadel, get a Shotgun Spree during any ranked or social match.
25 G

Blades of Fury
On Heretic, get a Sword Spree during any ranked or social match.
25 G

Ghost Patrol
On Longshore, get 3 kills with a Ghost during any ranked or social match.
25 G

Post Mortem
On Orbital, get 2 Death From the Grave medals during any ranked or social match.
25 G

… Get the Horns
On a Mythic map, get a Bulltrue medal during any ranked or social match.
25 G

Awww, Too Bad
On a Mythic map, get a Killjoy medal during any ranked or social match.
25 G

Killtacular
On a Mythic map, get a Killtacular during any ranked or social match.
25 G

Have Fun Respawning
On a Mythic map, get an Extermination during any ranked or social match.
25 G

Save This Film
On a Mythic map, get a Perfection medal during any ranked or social match.
25 G

Delicious Brains
On a Mythic map, infect 2 humans during any ranked or social match.
25 G

Zombie Repeller
On a Mythic map, kill 2 Zombies during any ranked or social match.
25 G

Tank Dropper
On any Mythic map, get a kill on another player while in monitor mode.
25 G

Assembly Skull
On Assembly, find the hidden skull.
25 G

Citadel Skull
On Citadel, find the hidden skull.
25 G

Heretic Skull
On Heretic, find the hidden skull.
25 G

Longshore Skull
On Longshore, find the hidden skull.
25 G

Orbital Skull
On Orbital, find the hidden skull.
25 G

Sandbox Skull
On Sandbox, find the hidden skull.
25 G

Vidmaster Challenge: Brainpan
Find all the hidden skulls on the Mythic maps.
25 G

Vidmaster Challenge: Lightswitch
Get to the rank of Lieutenant in any playlist in the new EXP progression system.
0 G

Vidmaster Challenge: 7 on 7
Enter into any ranked or social playlist with 7 EXP on the 7th of the month.
0 G

Halo 3 Achievements Part 1

Halo 3 Achievements Part 2

Halo 3 Achievements Part 3

Halo 3 Achievements Part 4