The second map pack for Bungie and Microsoft’s excellent Halo: Reach has just been put up on Xbox LIVE Marketplace, allowing you to add three more expertly designed multiplayer maps to the roster.

Read up on those maps in detail over here with awesome screenshots and a trailer to provide the visual flair, and head on down below for official details and a behind-the-scenes look at the making of the new content:

Halo: Reach – Defiant Map Pack

• Price: 800 MS Points
• Size: 691.43 MB

“The fight for humanity’s survival rages on in three brand-new battlefields: a giant orbital station high above the burning surface of the planet, inside the forest of a military wilderness-training facility, and wrapped in the remnants of a civilian mining facility.

“These awesome new environments comprise 2 multiplayer maps and a Firefight mission that deliver 3 new achievements and 150 gamerscore. Developed by 343 Industries and Certain Affinity.”

(Note: A hard drive with at least 1 gigabyte of available storage is recommended and required for some online features. For compatibility with Halo: Reach, the Defiant Map Pack cannot be installed to an external memory device if a hard drive is present.)

Halo: Reach – Behind The Scenes of the Defiant Map Pack

We’ll be bringing you our full impressions of these new Halo: Reach maps very soon, so stay tuned! In the meantime, read over El33tonline’s review of Halo: Reach to see what you’re missing out on.