Halo 4’s Crimson Map Pack adds all-new competitive multiplayer environments and introduces Extraction to online matchmaking. Out December 10, the pack features three new environments:

Wreckage: the manifestation of the chaos of war. A medium-sized, asymmetrical map great for accommodating a wide range of objective-based game modes including King of the Hill and Capture the Flag, it is a ravaged environment of crashed debris, where the surrounding destruction creates complex paths perfect for throwing off your opponents, or testing the limits of your Warthog. This devastated landscape provides plenty of cover, and tons of nooks and crannies are at your disposal while fighting for your turn to become King. Wreckage supports up to 16 players in Infinity Slayer and up to 12 players in a variety of other modes, including Capture the Flag, King of the Hill and Oddball.

Harvest: a canon concept brought to life – the doomed agricultural planet where humans first made contact with the Covenant. A small to mid-size map, Harvest is ideal for Capture the Flag. Here, you’ll need to get creative to effectively use light vehicles which are limited to the exterior pathways and can’t get into the bases, making this map perfect for infantry firefights and face-to-face skirmishes. Snipers will also feel right at home; long sightlines are broken up by great cover and hiding spots. Harvest allows up to 12 players to face off in Capture the Flag, Infinity Slayer, King of the Hill, SWAT and Slayer Pro.

Shatter: themed around natural crystalline surfaces and the huge UNSC factories mining them. This large, symmetrical map is a playground for the Warthog and Mantis - its open pathways make it easy to get around, whether on foot or in vehicles. Shatter is a great fit for Dominion and the new game type Extraction. For some close-quarters face-time, escape the open landscape and duck into a mining facility, or slip through a doorway and hunt unsuspecting Spartans. This map has variety for different types of players. Shatter enables multiplayer mayhem for up to 16 players in Infinity Slayer and up to 12 players in other modes, such as Capture the Flag, King of the Hill, Dominion and Extraction.

The Crimson Map Pack costs 800 Microsoft Points, and is the first of three upcoming Halo 4 War Games add-ons. Players who purchase the Halo 4 War Games Map Pass or Halo 4 Limited Edition will receive access to all three map packs as they become available in December, February, and April, for 15 per cent less than what it would cost to buy each pack individually.

In addition to the Crimson Map Pack, 343 Industries today unveiled Extraction, a new game type that will be introduced to Halo 4 online matchmaking on December 10. Extraction is a 5 vs. 5 objective-based game type where opposing Spartan teams are tasked with extracting assets from various sites around the map. Once a team has found a site and is in position, they must plant their beacon and protect it from the opposing team while the extraction process occurs. If the defending team remains in control of the beacon, they receive one point, however if the opposing team overtakes the site before extraction is complete, the point goes to them. Once a site has been extracted, a new site becomes available. The first team to extract five points wins.

PlayStation All-Stars Battle Royale is getting a new stage in addition to previously announced characters. The new environment is a mashup of Heavenly Sword and Wipeout, and the DLC will also include playable characters Kat from Gravity Rush and Emmett from Starhawk. It’s expected in early 2013 and will be free for two weeks.

Elder Scrolls V: Skyrim’s latest DLC, Dragonborn, is available now on Xbox Live for 1600 Microsoft Points.

Max Payne 3’s Painful Memories Pack will be available tomorrow for download on PC, PlayStation 3, and Xbox 360. Painful Memories includes four new maps for multiplayer, the IMG5.56 and UAR-21 assault rifles, new avatars, items, and the Hangover Burst, which temporarily causes enemies to respawn with blurred vision and reduced stamina and health. It costs US$9.99/800 Microsoft Points.

XCOM: Enemy Unknown’s first DLC, the Slingshot Content Pack, is available now for US$6.99/560 Microsoft Points on PC, and Xbox 360, and drops tomorrow on PS3. In the DLC, players will meet a Triad operative, divert an alien ship’s course, and battle the aliens in the skies over China through new linked Council missions. The pack also includes three new maps tied to the Council missions, a new playable squad character, and new character customisation options.

Assassin's Creed III Season Pass holders get the game's first piece of downloadable content on Xbox 360, PlayStation 3, and PC today. The Hidden Secrets DLC is available for everyone else to purchase on December 12, except Wii U owners who are getting it at a later date. Hidden Secrets adds three extra missions including the Lost Mayan Ruins, the Ghost of War and a Dangerous Secret, for an additional hour of gameplay. Every successful mission is rewarded with in-game weapons. Gamers will also receive two singleplayer costumes: the fabled Captain of the Aquila uniform and the traditional Colonial Assassin outfit, and two multiplayer characters including the fearsome Redcoat and the deadly Sharpshooter.

Hidden Secrets, Battle Hardened, and the three King Washington DLC packs make up the five packs announced as coming to Assassin's Creed III. All five are unlocked via the game's Season Pass, available on Xbox Live Marketplace for 2400 MSP and PSN for US$29.99.

Darksiders II is getting a third downloadable content pack, The Demon Lord Belial. According to THQ: “Little has been said of the struggles on Earth besides the story given to WAR by the Charred Council. Rumors have now surfaced that perhaps the Third Kingdom was not completely destroyed, and remnants of humanity still yet survive! It falls upon Death to seek out the truth and unearth a forgotten evil… The Demon Lord Belial.” The Demon Lord Belial is available to download on Xbox 360, PS3, and PC now, for 800 MS Points/US$9.99.

Hitman: Absolution’s Deus Ex: Human Revolution DLC costume pack launches on PC, PS3, and Xbox 360 today.

New Super Mario Bros. 2’s latest course pack for the Coin Rush mode on 3DS is available to download for free until January 31 2013. The Gold Classics Pack, the sixth course pack made available, offers three courses based on classic moments from the Super Mario series and takes inspiration from games such as the original Super Mario Bros. and Super Mario Bros. 3.

Forza Horizon’s IGN Car Pack is available now on Xbox 360 and includes the 2011 Ford F-150 SVT Raptor Halo Edition, the 2008 Aston Martin DBS, the 2012 Ferrari F12berlinetta, the 2006 Ford GTX1, the 2006 Hummer H1 Alpha Open Top, and the 1971 AMC Javelin-AMX. It’ll set you back 400 Microsoft Points.

Dance Central is getting a “Call Me Maybe” routine, available from the Music Store or the Xbox Live Marketplace for 240 Microsoft Points from tomorrow. According to Microsoft the routine – choreographed by Spikey Soria – captures all of the energy and fun of Carly Rae Jepsen’s "infectious hit".

Rumour: Rage is getting new DLC assuming a trophies listing is accurate. PS3Trophies.org is reporting that 10 new trophies are being added to id Software's shooter, five based around a new job path called The Scorchers. Another trophy is for finishing the campaign on 'Ultra Nightmare difficulty,' suggesting the DLC includes a new difficulty level even tougher than plain ol' Nightmare setting.

The trophies are backed up by a PEGI listing from earlier this year for Rage: The Scorchers, content rated for Xbox 360, PS3, and PC. id Software founder John Carmack has also said mod tools which were supposed to ship with Rage were coming to the game “soon”.