They make no sense. What kind of formula is being used? Are traits prioritized far more than level? I want as many salvage boxes as I can get, so I send every follower on missions, even if the success chance goes down to the 60s and 50s. I see shit like this several times a day:
So even if the success chance is low, I'll keep sending them, because clearly the system doesn't give a flying fartsicle about math. Or maybe it does? I don't know, it doesn't make sense to me.
Why do I sometimes fail missions with 85%, even 90, I've seen a 90 fail, and then succeed with missions in the 60s and 50s? Is it really just flipping a coin 100 times and counting?