Sounds like you’re trying to hard. Scene 1. Scene 2. It’s almost like you’re picturing the novel as a movie. Novels aren’t movies. If they were screen writers wouldn’t have jobs. I think you need to forget about trying to come up with different scenes and think about the story as a whole first. And forget about the reveal at this time. Doesn’t really sound like a huge reveal that needs to be in the first chapter unless the chapter is going to show what happen that caused the survivors guilt. What you should think about for the first chapter is introduce what the major conflict of the novel is going to be. Rather than make a bunch of scene breaks, make it a single scene in the MC POV and keep it to around 5 pages. Give the reader a glimpse into what the novel is going to be about.