CoD4 guide
 

Here's a snippet taken from the guide to give you a little taste:


When you first start playing CoD4's multiplayer you will only have a handful of classes available to you. Those are your default classes and will always be there. You can not change anything (weapons, perks, etc) when it comes to the default classes. These five classes have fairly balanced setups that will allow beginners to quickly adjust to how the game plays.

The default classes are as follows:




The assault class is always a great class to start out with. The M16A4 is a powerful rifle and easy to control due to its burst shooting. Having the grenade launcher attachment also helps ease players into the game by giving them an alternative way to get some kills. The stopping power perk works well with any weapon, but on the M16A4 it really helps if you tend to shoot from a good distance away. Extreme condition is another very helpful perk for both beginners and advanced players alike. It's much more difficult to hit a fast moving target. The frag/stun grenades are the standard package and work well when thrown back to back.

Strengths: Medium to high damage with weapons. Able too shoot accurately from a good distance away. Can run long distances.

Weakness: Easily detected on radar.

Tips:
1.) Don't hesitate to use the grenade launcher. It's a powerful attachment and can quickly clear out small areas.

2.) When shooting the M16A4, aim for the chest or neck and the recoil should carry bullets 2 and 3


Spec Ops is the ultimate beginner's class. The MP5 is extremely accurate, but with the Steady Aim perk active it becomes downright deadly when shooting from a medium to close range. The Sonic Boom perk helps to add to the C4 and frag grenade's blast damage making it a bit easier to use both. The silencer on the pistol helps to keep you off the enemies radar while shooting your USP .45.

Strengths: Extremely accurate at close to medium range even when shooting form the hip, high explosive damage and the ability to go undetected on radar when using the pistol.

Weakness: Weapon damage is weak to medium and poor accuracy from long distances.

Tips:
1.) Make sure to put your C4 to good use. A well placed C4 pack can stop enemies from advancing or completing an objective.