Wow, very cool and notable MI’s. I like the various features and specific names.
3-4: Brig Rock: Place the two highest point cost crew on this island. They cannot be re-assigned to this ship for four turns.
I recommend specifying that the crew come from the ship rolling for the effect – that way there’s no question as to which crew it’s referring to. (my first thought was it warped the two highest point crew currently in play to the island)