Black Ops 2 is the latest chapter in the 1st person shooter spin-off from the Call of Duty franchise. Call of Duty: Black Ops 2 is a continuation of the shadowy cold-war storyline introduced two years ago. Set in 2025 with narrative flashbacks to the early 80s that flesh out the character origins, Black Ops 2 expands upon the Call of Duty formula by introducing new nonlinear gameplay elements and alternate outcomes based on player choice. Also new is the use of DirectX 11 API to the Call of Duty game engine, bringing improved lighting, shadows, ambient occlusion, depth of field enhancements as well as a more GPU optimal performance unlike the first Black Ops title which ran on DirectX 9. Call of Duty: Black Ops II is also compatible with NVIDIA’s 3D Vision stereoscopic 3D gameplay and carries a performance rating of “good” for the campaign mode while the zombie and multiplayer modes are rated "Excellent" with the latest GeForce 310.70 drivers.