To understand the obsession, you need to understand the format. A .cia file is not a virus, nor a standard game rom. It stands for —a file format used by hacked 3DS consoles to install games directly to the system’s home menu, just like an official eShop download.
Because the 3DS did get two Call of Duty titles: Black Ops (DS) and Modern Warfare 3: Defiance (DS). Notice the "DS" part. These were original, scaled-down games for the older hardware, not ports of the console blockbusters. When you see a forum post asking for a "Black Ops 2 3DS CIA," what they are really asking for is a hacked, repackaged, impossible dream. Call Of Duty Black Ops 2 3ds Cia Download
If you love Black Ops 2 , play it on: