Oh wow. I decided to actually read your stuff and my France thing fits in beautifully. Crime Haven can be the underground sewers of France, which leads into the Fox Hole. Here's a set of missions I thought of. Mission 1: The Eye of London After some unsettling news is given to The Speaker, he requests Guardians scout the area closest to the Presidium. As you arrive, your ghost tells you of London's rich history before the Collapse. He then suggests you find a vantage point so he can map out the area. The Guardian then discovers the Crow's Nest and meets Eyeball, who almost kills you, but soon after befriends you. He then tells you of the Fox Hole.