Since I have a limited amount of vocabulary to describe this game, I will allow Wikipedia to assist me.
S4 League is a third-person shooter multiplayer game developed by Pentavision in 2008. It is currently hosted in Europe by alaplaya and by Pmang in Korea, with an American edition currently pending. S4 League is available for play in all regions.
The title of the game comes from the four "S" words defining this game: Stylish, eSper, Shooting, and Sports. eSper refers to the 'skills', powers held by characters within the virtual world setting of the game.
Gameplay
S4 League plays similarly to other online Korean and now English games of its nature, such as GunZ and eXteel; however it is somewhat unusual in its particular emphasis on teamwork, and sports, rather than violence aligned perspectives. It is a third person shooter, with four modes of play: Touchdown, Deathmatch, Chaser, and Arcade; all of with either no limits, their own "special" limits, or sword-only that restricts users to melee weapons and limited skills.
I seriously had to do this for S4 and advertise it...I'm sorry, but when they had the media section for signing up, they had the options such as "Friends, Google, ads, etc." but one that jumped out at me was "mangaka". I just had to do something for that.