In terms of warfare. I think you should have the type of technology used in WW1... aka...
1. Trenches
2. Maned turrets (instead of automatic ones, seems a bit more realistic.)
3. A limit on bullets (bullets could be made by a colonist using metal)
1. Trenches
2. Maned turrets (instead of automatic ones, seems a bit more realistic.)
3. A limit on bullets (bullets could be made by a colonist using metal)