Like this? https://youtu.be/dFG0YgxEN2M
Yes, it looks a little rough. However, I believe that was the idea I had in my head. It makes more sense to me for the wayfinder to be stored safely in the depths of Vader’s castle instead of on the castle grounds anyways. Also I just think it could sell the establishing shot of Vader’s Castle from RO better and make it not feel so random or tacked on. Now Kylo fights his way through the surrounding area to get to the castle “ruins” where the wayfinder is stored. Also from that link, I think a few First Order banners or some sequel era stormtroopers walking around Coruscant could definitely help sell the First Order occupying the former republic capital before Kylo’s board meeting scene.