This is tough news to talk about, since it's sort of spoiler-y. If you haven't yet finished Uncharted 3: Drake's Deception, you might want to go ahead and do it before you read about Naughty Dog's newly announced DLC for the game, coming in March.
Credits rolling? Okay, good. The developer will be adding Co-Op Shade Survival Mode as a DLC release next month. It's a teaser reveal on the Naughty Dog website, so there's no date listed for the release and no other details beyond the name. You can probably figure out what the score is though.
Uncharted fans can get a DLC fix right now however, as the Flashback Map Pack #2 is available today in the PlayStation Store for $9.99 (or free with a Fortune Hunter's Club subscription). You can check it out now in the new trailer up top. You can also hit the jump for an early peek at Co-Op Shade Survival.
Source: Naughty Dog