Update: since the latest ps4 update the game no longer crashes, but still can’t make it to the main menu as it now gets stuck in an infinite loading loop during the intro movie.
Oh and Sony are being arses about a refund, so now I’m stuck with this game that doesn’t work.
Edit: also still not heard anything from warhorse. So that’s 3 weeks of silence since I sent them the files they asked for. Great customer service that is.