the assassins were
4 town assassins (3 shot ultra, 2 shot conq, 4 shot kweh, 3 shot alwaysmind)
1 indie assassin (3 shot michelle)
1 mafia assassin (2 shot cal)
assasins have 2 shot if their assasin ability is accompanied by another major ability (in case of conq and cal)
assasins have 3 shot if their assasin ability is accompanied by a single other ability (in case of ultra, alwaysmind, and michelle's fake claim)
assasins have 4 shot if thats basically all they do (in case of kweh)
the mechanic is indeed a psudo second lynch, and the giveaway is that the submission for the assasination target needs to be made during the day (before lynch flip)
if the first assasin commander (joygirl) dies, alwaysmind's role will be upgraded to be the backup commander, provided that he unlocks his binding vow