Okay, so as I see someone doesn't really get it.
It is NOT recommended, to make the cfg file. Just makes it faster.
If you would like, just open the console (press the 0 [at least for me]) and then write those commands one bye one:
/cl_cacvalidate_spinfactor 1 <- press enter, and write the next one.
But you have to type these whenever you would like to save a class (if you restarted the game before)
To create a cfg file easier, open up Notepad, copy that lines into it, go to top left corner: File / save as / then here select your black ops/main folder, and as a file format select "All files" then to the name type save.cfg, then press the save button and it's done. Hope now it's clear.