Call of Duty Black Ops 2 is a game where it no legal way to cheat. To progress in the multiplayer mode, you'll require a lot a patience and skill. Here are some tips to play Black Ops 2 like a pro. First of all, no matter the game mode, it is essential to focus on the main objective of the mission. Even if you might be tempted to get good statistics (enemies killed/ deaths/ assists), the victory of the whole team is more important.
The mini-map at the top of the screen is here to help. It gives you a lot of information about the position of your enemies and your allies.
Stay on the move. You can get some easy kills by "camping" at a good spot, but it won't last.
When playing the zombie mode, players can act cooperatively against monsters and earn points. If you want to maximize your score, focus on knife kills. There's a bonus that triggers when you revived your teammates over 20 times (faster revive rates).