Can you setup a custom game by yourself with bots on Black ops 2 plutonium?

[Potatoes]

I
would like to do this and practice but i cant get it to work.

[Buzy]

Potatoes hey buddy yes u can just go in a private match setup all blablabla then press start the match im pretty sure it will not work then press the ² under ur échap then type xpartygo