▁is ▁designed ▁for ▁the ▁global ▁market ▁but ▁was ▁not ▁released ▁outside ▁of ▁South ▁Korea . ▁K ama ▁Digital ▁Entertainment ▁bought ▁the ▁Rog ue ▁Spe ar ▁engine ▁to ▁develop ▁this ▁game ▁with ▁major ▁content ▁differences ▁and ▁the ▁game ' s ▁events ▁occurr ing ▁on ▁South ▁Korean ▁soil . ▁ ▁In ▁the ▁game , ▁Rain bow ▁is ▁deployed ▁to ▁South ▁Korea ▁and ▁batt les ▁seem ingly ▁armed ▁terror ists ▁and ▁crim inals ▁who ▁have ▁committed ▁various ▁acts , ▁mostly ▁against ▁South ▁Korean ▁national s . ▁Later , ▁they ▁find ▁out ▁they ▁are ▁actually ▁facing ▁a ▁Y aku za ▁group ▁trying ▁to ▁out sm art ▁them ▁and ▁keep ▁them ▁occupied . ▁ ▁Plot ▁In ▁August ▁ 2 0 0 3 , ▁one ▁of ▁the ▁biggest ▁drug ▁tra ff ick ing ▁operations ▁in ▁South ▁Korea ▁with ▁about ▁ ▁of ▁ec st asy ▁is ▁fo iled ▁due ▁to ▁an ▁anonymous ▁tip ▁provided ▁to ▁the ▁South ▁Korean ▁police . ▁ ▁Su k - won ▁Kim ▁( 김 석 원 ), ▁a ▁Z ain ichi ▁also ▁known ▁by ▁his ▁Japanese ▁name ▁" Y as uo " ▁was ▁the ▁anonymous ▁inform ant ▁of ▁this ▁drug ▁operation . ▁Kim ▁was ▁once ▁a ▁professional ▁hit man ▁of ▁Japan ' s ▁largest ▁Y aku za ▁organization ▁" I kes h ita - g umi ▁( I kes h ida - Jo ; ▁ 이 케 시 다 조 ; ▁ 池 下 <0xE7> <0xB5> <0x84> ▁( ass umed )" ▁and ▁is ▁largely ▁cred ited ▁with ▁the ▁I kes h ita - g umi '