I only got it after 4-5 events. It's totally random! Keep joining the event if you want a chance to get it again.
My 1000th post, got Drake's present head rank now!
Edit: Or should?
Edit 2: Now I got it.
Here is the list for Saturday, December 22nd at 3 PM Pacific.
Game: UNCHARTED 3: Drake's Deception
Date & Time:
Special NP Event with Poison
Saturday, December 22nd at 3 PM Pacific
(6 PM Eastern & 11 PM GMT)
[Reserved] - NDI
If you are on the primary list then I hope to see you tomorrow. If you are on the reserves list then I hope you can join us.
NOTE: There will probably be a special NDI guest attending this event. With that being said, it isn't too late to sign up for this Naughty Paws event if you would still like to participate. This thread will be checked a few hours prior to the start of the event.
I searched it on Google. Apparently he won the "UNCHARTED "Drake's Deception" Signature Contest November 2012" in the fan created content section, that's why nobody knows.
Edit: And only King_Cobra97 was the other entry so he had a high chance to win.