the way i understand raids and manhunter events (be it normal ones or on caravans) is that they completely depend on your story teller, difficulty and your local wealth.
the one difference i have read about is that caravans on roads meet more people than in the wilderness, also if you're close to a certain village, be it traders or enemies. i assume that whenever an event happens rng determines which of the 5 or so factions it is. if it is a friendly one, they are either visitors or traders. if it is a hostile faction you get a raid. so good relationships also help here.
i do not understand what the stealth number stands for, though.
ps: honestly, generally i dont feel a difference in meeting friendlies along the way or getting manhunters on my tail or even raids. this is why i dont really care about safe routes (because i dont understand them) so i just choose the quickest route and take less stuff and troops with me. (food, colonists and their gear also count as wealth, afterall (i believe))
the one difference i have read about is that caravans on roads meet more people than in the wilderness, also if you're close to a certain village, be it traders or enemies. i assume that whenever an event happens rng determines which of the 5 or so factions it is. if it is a friendly one, they are either visitors or traders. if it is a hostile faction you get a raid. so good relationships also help here.
i do not understand what the stealth number stands for, though.
ps: honestly, generally i dont feel a difference in meeting friendlies along the way or getting manhunters on my tail or even raids. this is why i dont really care about safe routes (because i dont understand them) so i just choose the quickest route and take less stuff and troops with me. (food, colonists and their gear also count as wealth, afterall (i believe))