Reduce unrest?

[umpaloompa]

I'm playing as Baktria and after a few runs I've managed to not get some campaign going on. I've conquered some towns as asked to me from a mission (like Asaak from the Parthians). The next mission asked me to get Lithinos Pyrgos which is full of unrest and I was wondering if this is normal or how to get this down? I remember back in the day you could recruit a governor/client king that would reduce unrest a lot which doesn't seem the case anymore. I've used some cheats to build up some basic buildings public order buildings with military occupation/regional allied tributary but I never get above 30%
Is there any other way to subdue this region or is this region not supposed to be conquered?




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https://imgur.com/a/VvSmby0
https://imgur.com/vpWxcfw