Ok, im making a map similiar to a town/city defence and im missing a trigger and i dont know how to make it..in this map you have a team of defenders, and theirs wave of attackers, but i dont know how to make it so once one wave is sent and killed another comes like 30 seconds after..? anyone know how to do it and if its in JASS then no ty, i dont know what a JASS is, and wtf it mean, so plz if you know a wave trigger like that tell me !!! TY