If you like intense, fast-paced action then you definitely need this game!
Counter-Strike: Source is the same game, except it has gotten some major upgrades. Lush-graphics, amazing sound, and better gameplay. Now Valve's new Source engine is what made that possible. The graphics are now amazing, the characters, guns, and maps have all been re-done to look as real as Valve could make it. The sound is spectacular, especially on a 5.1 system.
If you still have the original Counter-Strike and not this one, it's time to upgrade! Trust me this will be the best game you have ever played!