TU2 is here!

Midnight last night an historic thing in Halo history happened. The Title Update 2 was indeed released.

They released a number of new achievements bringing the number of achievements to get up to 73!

According to Bungie, the Vidmaster Challenges are very valuable, and if you get them all, there is a great surprise.

The rest are worth quite a bit. And yet, Bungie has more in store. The TU2 only allows you to get 10 of the other achievements. They do have quite a few maps coming. Two of which are "Assembly" and "Heritic" There are, of course, more than that, but you can turn on your 360s and take a look.

Read the post on Bungie.net

List of Achievements - how to get them...

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

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

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

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

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

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

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

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

Here is where it gets fun - New maps!

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

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

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

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

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

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

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

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

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

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

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

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

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

Assembly Skull
On Assembly, find the hidden skull.

Citadel Skull
On Citadel, find the hidden skull.

Heretic Skull
On Heretic, find the hidden skull.

Longshore Skull
On Longshore, find the hidden skull.

Orbital Skull
On Orbital, find the hidden skull.

Sandbox Skull
On Sandbox, find the hidden skull

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

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

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

So the list of Mythic maps in the Mythic Map Pack are:
Assembly
Citadel
Heritic
Longshore
Orbital
Sandbox

And perhaps even more. As to how much it costs, no one know just yet. Bungie is still working with Microsoft on releasing them...