A short and concise mission. Love the use of the flooding submarine trope with a cult-injected twist. The use of blood is evocative and I love the idea that the more you kill cultists the more it floods. I'd love to see a version of this mission that's maybe page longer with a tracking tool or chart for referees to keep track of the blood level on the submarine easier and maybe some key art thrown in but as it stands I think this is a great example of how a FIST mission should be written.