3rd job skill cooldown like infrared= mechanic skill ....can keep spamming...the skill not wait 15 sec to cast again...
here my skill_cast_db.txt
// SkillID,CastingTime,AfterCastActDelay,AfterCastWalkDelay,Duration1,Duration2,Cool Down,Fixed Casting Time
//-- NC_INFRAREDSCAN
2270,1000,500,0,10000,0,15000,0