Uncharted 3 is getting a new "Co-Op Shade Survival" mode in March. Naughty Dog shared almost no information beyond the name, and expects us to extrapolate more from the screenshot above. If we had to guess, given the name, it's about making sure Drake and Elena stay out of the sun and wear proper sunblock while they're on holiday.
The tease for the new mode comes as the company preps the $10 "Multiplayer Flashback Map Pack #2" for tomorrow, February 21. Remember, you can get all the Uncharted DLC at a deep discount as part of the Fortune Hunters' Club -- it's like AAA membership for couch adventurers.