1) The drone Karrar is not a suicide drone but an old 2010 Reconnaissance/Strike drone (https://www.globalsecurity.org/wmd/world/iran/karrar.htm)
2) The other two suicide drones: Arash, and Kian, are two names for the same drone which named Kian (Arash).
(https://www.militaryfactory.com/aircraft/detail.php?aircraft_id=2208
