I made a quest where, when you reach a location, it will spawn 5 Rebels down the hillside with rebel armor and such. Instead, it chooses to spawn only 1 rebel, which does have its name, with no equipment,

You might have to instead put the spawnmob event as the ending event to a stage instead of the starting event,

Alright I had this issue a while back, I would suggest redoing the mob spawn event and testing it with each part, are you trying to spawn a disguised mob or a special mob?

I set the Spawning mob event at the end of reaching a location, but it did not work.

I completely redid the quest and event. I have a quest that says reach blah blah and finish event as HasselhoffAttack and it spawns 5 zombies in black rebel armor, and rebel swords. But when I reach it, no mobs spawn.

any errors in console?

@DovydasAL Closing due to lack of response. Feel free to open a new ticket.