@SPARKY1922 I have never played with these settings but yes I believe with MCCC you can set it so that the game won't spawn any new occults in your saves other then the ones that are needed for specific roles (like I believe if you have a sim in the science career it will still spawn the ones needed for that) it however is a blanket whole-game kind of deal you can't say you don't want aliens in Sulani but do want them in Oasis Springs. That's because the game has one pool of sim's they pull from for walk-by and lot populations that spreads out over the entire world not just specific neighborhoods.
Now there might be mods out there that can manage that (it must be at least a bit possible to manage what your sims can and can't do in specific neighborhoods since the infected Strangerville sims are only infected it they're in Strangerville/or don't spawn in other worlds when they're infected) but I don't know of any that do anything like that.
