This is the most popular games shooter at this point, so the most successful to date.Call Of Duty 4: Modern Warfare has only been overcome Modern Warfare 2, but it was only 1 or 2 days when the Modern Warfare 2 released. MW 2 is a very fun game, with great variety and although it is not as balanced Call Of Duty 4, it's definitely a lot of fun playing the game.
At the moment, Call Of Duty 4: Modern Warfare is the most popular games on the PC after the World Of Warcraft. The same was Counter Strike 1.6, when he came out and dominated the market for several years. Then, Counter Strike Source came out, basically the same game with better graphics. In addition, Counter Strike Source was the last game to hold the number 1 spot as the most popular video games on the PC before the World Of Warcraft was released.
I think that if Valve decides to release a new Counter Strike, it would be a "threat" to World Of Warcraft domination, and it will take the number 1 position as the most popular fps or shooter.
The other shooter that came out and quickly grabbed the top three spots Battlefield: Bad Company 2. Now the question is: how long it will last there? We'll have to wait and see what.
Call of Duty series has been very successful. Call Of Duty and Call Of Duty 2, among them, to open the path to success for the following games. Thanks to an innovative game, the ability to seek down the look and feel that you get during the game he was in the middle of World War II, these 2 games in the history of the first games shooter.
Wolfenstein is one of the greatest shooters out there. Very original story with Nazi zombies and interactive game play with lots of visual effects, this game made it into the top 15 most popular games of staff.
Crossfire and Combat Arms 2 more big games frames, each with a different story and different set of games. Various weapons, maps, game play, but it creates a great environment in both of these first-person shooters.
In conclusion, I think all these games are great, each of them something special and different from the proposal.