Halo 4 Crimson map pack DLC brings eight new Achievements. And here they are

Halo 4's first DLC map-pack, Crimson, lands on December the 10th, bringing three new multiplayer maps and eight new Achievements. The details of the latter have just dropped via Halo Waypoint. Better polish up that aeriel combat if you want them though. Jumping seems to play a rather large part.

The details? As below.

Now They Fly?

Get a kill while airborne in a Warthog - 50 points

Size Is Everything

Kill 20 enemies with a detached Machine Gun Turret - 20 points

ODST

Kill a player while you're airborne from using a Man Cannon - 30 points

Bigfoot

Kill 20 enemies using the Mantis' stomp attack - 20 points

David and Goliath

Board an enemy Mantis - 20 points

Clay Pigeon

Shoot an enemy out of the air while they use the Man Cannon - 40 points

Special Delivery

Kill an enemy with a melee attack when landing from a Man Cannon - 30 points

Pump Yer Brakes

Score the killing blow on a Mantis - 40 points

As for those maps? All the details (as well as a whole raft of screenshots) are right here.