With the fire tech from recent ISC . will fires be able to spread to trees, like on Hurston or Microtech, or inside of hangars? and if so, how do we combat fires on large scale such as forest fires and settlements being on fire?

Fire on planets has been discussed, but is not coming any time soon.

There’s a considerable challenge tracking fire on such a huge potential area. With ships, we are limiting ourselves to a smaller contained environment.There’s also the question of persisting this kind of burnt environment. Until we have a more generic system to persist damage done to the planetary environments, it’s not worth putting resources in the above item.