If you live in North America, play the North American version (Combat Arms - Online FPS Action)
If you live in Europe, play the European version (https://combatarms.nexoneu.com/)
If you live in Korea, play the Korea version (ÇϵåÄÚ¾î ¸®¾ó¾×¼Ç FPS ÄĹî¾ÏÁî)