Suggestion of survivor rank system

Ustam

I played killers for 150 hours and just started playing survivors recently. Compared to Killer ran system, I found one major probelm for survivor's: when you didn't save your teammates and survived, most of time you can't rank up. However, sometimes your teammates don't struggle so you do not have chance to save them and you survived without getting hooked but still can't rank up. I think a good survivor is able to be invisible from killers and if he/she repairs gens and survive (even don't save his teammates) that's should be a rank up.