I really wish those kinds of games tried to convey something else than family conflict. Like, you really think i'm gonna care about a family who's already dead while playing a online fps?
If someone appears trying to be someone i once knew i would just kill them (I know you meant it to be a curse or a ghost, but that's really cliche, it's the same old catridge creepypasta stuff).
The only pros i can say about this game is that at least you didn't do the flag mode like NPO and Connection Haunted (and the black shadow is unsettling, good idea)
Imo, the moment you add personal stuff about the main character life into the mmo/fps, you're breaking that immersion of "being alone", it turns out to be something beyond that, involving people around his life, and that is not what i'm expecting from a game with this idea