If you are a solo player looking for a polished, AAA story campaign—look elsewhere. The Black Ops 2 campaign is great, but the Pluto client doesn't enhance it much.
Download plutonium.exe. You can save the launcher anywhere you want, somewhere convenient such as your desktop or the game folder. BO1, BO2, MW3, WaW redefined. - Plutonium Project pluto-t6-full-game