[Update] Congrats to EvilYam, pun][sher, asrivastava, Elette, and thewrath69. You have been randomly selected to each win one code for the Halo: Reach "Defiant Map Pack." Check your Shackmessages and get back to us ASAP.

[Original Story] Shacknews has ventured into deep space and returned with a small handful of codes for the latest map pack DLC release for the Xbox 360-exclusive, Halo: Reach.

There are five Xbox Live Marketplace codes up for grabs, offering players the latest add-on content for the Spartan-filled adventure: the Defiant Multiplayer Map Pack.

The Defiant map pack includes three new arenas for futuristic battle: Condemned, Highlands, and Unearthed.

Entering into the giveaway couldn't be simpler; however, there are a few things to keep in mind:

• To enter leave a comment on this post.

• You must have a registered Shacknews account. Winners will be contacted via Shackmessage.

• You must be 18 years or older and a resident of the USA or Canada, excluding Puerto Rico and Quebec.

• Limit 1 entry per person (only your first comment will be counted).

• The entry period ends at 9:00am PST on 3/17/11. This giveaway has ended.

• At that time, we will randomly select five winners to each receive one (1) code for the Xbox Live Marketplace, redeemably for the Halo: Reach "Defiant" Map Pack. (MSRP $10.00).