Many things could be done, but for modeling the earth and space down to the last stone and blade of grass cameni needs to become a god who lives forever.
I don't think it's the right engine for a FPS. Take Unreal or Frostbite or Cryengine if you want to go that way.
FPS? If anything I would love for a military simulator to be made with Outerra, not an FPS. I thought this area of the forums were for discussion regarding the engine. I was asking about parts of the engine. I never said right down to each and every small rock and plant.
I do not get why you have to sarcastically think that things are perfect and there is no need for any real world phenomenon like the Coriolis and Eötvös effect which cause things like the weather, ocean currents and things of that nature.
For the replacing the procedural data, I was referring to whether or not the engine can easily adapt when new higher quality and more in depth data is gathered and made accessible for projects like this.
For manmade structures, like it or not, earth data is filled with things like the Panama Canal and other manmade rivers, lakes, structures that effect the environment. It would look odd for a river from the Atlantic to the Pacific Ocean.
Things like railways, roads and runways would allow for people to experience some of the most unique and dangerous runways like courchevel airport, or dangerous railways, or roads. Imagine seeing some place on TV and then loading up a game/sim with Outerra and traversing that exact terrain they did with the same weather conditions, temperature and hazards.