User blog comment:Crazy sam10/Black Ops II Prestige, Combat Training and Party Games/@comment-173.18.222.105-20120928030251

Sounds like they did away with Combat Training as we knew it from BO, opting to instead change it into a beginner-friendly playlist. If you want the full Combat Training experience in BOII, you'll need to look into Custom Game settings - so you can now have an 18-player lobby of you, your friends, and the rest of the lobby as bots, and you can change the class settings to allow every slot to be used, ignoring the "Pick Ten" rule, and likely choose whatever weapon you want as well.

So, to sum it up, Custom Games is now the new "Combat Training," just without the ranking up aspect.