Just found this interesting sentences by Eric Kolozwisk(guy from nd)
"I work at ND for 9 months ( as an environment artist) and left basically because I found I did not enjoy working on realistic projects. As you can see from my work I favor stylized stuff. Also the studio culture at ND favor lots and lots of crunch. Definitely not conducive to family and married life. It's not terrible at all, but just not for everyone. As for characters, man at ND you have to be first class. Take a look at the work of Hanno Hagedorn to see how good you need to be."
"Thanks man! There were lot of reasons I left. They have a weird system of management at ND that I didn't gel with. Also I wasn't crazy about working on realistic games. I also left because I got an offer to be a Lead at Square Enix. Unfortunately soon after I started they canceled our project and laid our team off. I'm at Retro now, Retro is a much better fit for me. Hell who hasn't grown up playing Nintendo games. Now I get to work on them."
Considering uncharted is not a realist shooter,and eric trought its too realistic,theres no way he will accept a job to work in a gritty hardcore shooter.
also retro just hired the lead artist from epic mickey