Call of Duty: Black Ops features extensive multiplayer experience and comes packed with lot of new features never before seen in any Call of Duty games. I presume most of the people by now are done with Singleplayer campaign, so if you were looking for a brief introduction to Call of Duty: Black Ops multiplayer, look no further.
Call of Duty: Black Ops Multiplayer – Beginner’s Guide
You can refine your skills in Combat Training. You can play against bots of adjustable difficulty on any of the 14 multiplayer maps. Combat Training features its own leveling system, and you don’t carry over your unlocks and purchases. Basically, you start over, for practice.
One of the new features introduced in Call of Duty: Black Ops is the in-game currency, you can use to buy weapons, attachments, killstreaks, and everything else in Multiplayer.
Level Up, and unlock the stuff, and then purchase it with Cod Points, to be able to use it. You earn certain amount of Cod Points after every match as you level up. You earn them big in Contracts and Wager Matches.
Weapon Classes – Create a Class
This feature unlocks at Level 4, and you are able to create weapon classes. Right now, you would only be using default classes, as you still have a long way before custom classes become available. So try to learn the maps, and try different weapons.