Yes guys, it was rumored and here it is!
*Contains ..a surprise, its not really a Single player spoiler or anything like that. But it spoils an AWESOME game mode*
"Apparently, after beating the main story of UC3, some way or another (it wasn't made quiet clear in the topic/article) you unlock a secret (or not so secret) game mode called "Drake's Killer Clowns". Supposedly, it's similar to survival mode/COD zombies, but MUCH more involved.
No footage or screenshots are shown, as the writer explained that he wouldn't dare to visually spoil such a stunning spectacle. The guy says, and I quote, "It's the most insanely ridiculous amount of fun I've had in my 30 years of gaming". "Call of Duty's Zombie mode doesn't even hold a candle to this caliber of an experience. If it did, the flame would leap off the wick and run screaming with fear and embarrassment. DKC (Drake's Killer Clowns") is entertainment of EPIC proportions. Strobe lights, funhouse mirrors, fog machines, intense and scary music, creepy chuckles, and hordes of blade wielding, red-nosed Bozo's make you want to giggle with joy, screech in horror, and stain your drawers, all simultaneously."
And I didn't believe it at first.. but LOOK at this video from Gamespot! =
http://www.youtube.com/watch?v=lv5rO5flH28&t=5m35s
"I will say there is no zombie mode heh.."
ALthough.. we.. do .. haev something.. but.. we .. do have .. something.. co op.. ill say that
CONFIRMED!!!!!!!! FUCK YES!