Let's say you have set it to yes and you get Banshee which you have already caught, the game will run another code to select ghost one more time and this time whatever ghost is selected (including) Banshee will be there in the map.
So, is it correct to understand that if I caught a ghost called “a” in my last mission and this ghost “a” appears again, the random ghost selection code will work once again, increasing the probability of another ghost?