FPS games have existed since all the way back when Duke Nukem 3D, Wolfenstein
WoW Gold, and Doom were all created (in that order), and have tremendously evolved to the FPS games that you see played competitively today such as Counter-Strike, Halo, Team Fortress, and Call of Duty. Unlike the RTS genre that requires enormous micromanagement and strategy, FPS games only require you to be good at one thing to get
WoW Gold (for the most part anyway): hand-eye coordination. Sure, there is far more to it than that, but that is the one thing that will separate any good FPS player from an average one about
WoW Gold.
Both ESL and MLG that have hosted competitive WoW tournaments have also both held FPS tournaments for Counter-Strike and Halo respectively. I will not really bother linking a video to any crazy highlight-reel FPS video since they are basically all over the web about
WoW Gold, but I can say that if there is one person to talk to who can lecture you for half an hour on why CS 1.6 is an infinitely better game than WoW, it is none other than Neilyo himself. If you did want to see him in action playing CS, though, he made a blog about it a while back that you can find here about
WoW Gold.