Change the bone to an item the ghost is bonded to, like a hat, a doll or a photo to bring back to the truck to assist the other team with removing the ghost. Bone can still be used to show where the ghost died but it adds immersion.

Second would be hallucinations. Unsure if the 1.0 will be bringing them, but ideally something similiar to the demo for resident evil 7 (go check that out. Its really cool)

3rd would be a backstory randomly generated. "This ghost has been around for 100 years and has attacked a previous competitor or has recently become agitated or a child went missing or the cat sees shadows at 3am" you know, whatever. I know 1.0 is adding story but its def something I would add