I don't want to spoil secret myself but I will give you a hint. You have to do something in City Streets map.
how do you get the succubus true form i dont know if doing the method right
Get Tess and find Succubus ghostpedia page. If a ghost have or will have secret animation it will be mentioned on how to obtain it.
You didn't find different anything different? Not talking about the missing poster and love cabin one.
You didn't see no splash sign anywhere?
