I suggest to add some bonuses to a character who has scents in the inventory. The bonuses have effect only against the perpetrator. So I have two options here:
1) ranger gets ua in amount of (ranger's perc*explor) - (prep's int*stealth)
2) ranger gets ua in amount of ((ranger's perc*explor) - (prep's int*stealth))*(amount of scents in the inventory)*coefficient
I don't mean exactly those formulas, I mean just to use those variables.
