Achievements / Trophies
http://www.xboxachievements.com/game/call-of-duty-black-ops-ii/achievements/
Little Lost Girl
In Origins, release Samantha.
Not a Gold Digger
In Origins, share a weapon you dug up.
All Your Base
In Origins, activate all generators without allowing one to stop.
Kung Fu Grip
In Origins, free yourself and another from the Panzer Soldat's claw in one game.
Playing with Power
In Origins, build all elemental staffs in one game.
I'm on a Tank!
In Origins, ride the tank around the map without getting off.
Saving the Day... All Day
In Origins, revive another player four different ways in one game.
Master of Disguise
In Origins, use Zombie Blood to revive three players and activate a generator in one playthrough.
Overachiever
In Origins, complete all 4 Challenges in one game.
Master Wizard
In Origins, wield all of the ultimate staffs in one game.