Kojima Productions has released a total of 12 DLC packs for Metal Gear Solid: Peace Walker this year. So far, they have issued no updates for December. The media section has been updated with packs 10 through 12. Read on for the release notes.
You can find the DLC under "Extras" from the "Main Menu." Users without a Wi-Fi connection can download the packs at the Metal Gear Solid: Peace Walker DLC
page on TUS.Pack 10
The new content below is now available for download.
Camouflage Data: "Tree Bark", "Naked (Tree Bark)"Pack 11Camouflage Data: "DPM", "Naked (DPM)"Pack 12Camouflage Data: "Comrade", "Guns & Jungle"
Source: Metal Gear Solid: Peace Walker