In Call of Duty: Black Ops for the Nintendo DS, I have some perks that I have unlocked for online play. But the problem is, I don't know how to use them! Can someone explain to me how to use perks?
You can add perks for custom classes. To create a custom class, click the "CREATE A CLASS" option on the main screen in multiplayer. Your available perks can be selected in the perks section when creating a class.
To use the perks, you must select the class during a game. More class slots can be unlocked as you prestige to higher levels.