Make things for warfare.
Mods introducing new content into the game.
New ways to deal with enemies, be it attack or defense.
The Atomic Artillery Shell states that it has ''Range modifier: 300%'' but as far as I can tell it has the exact same range as any other shell
Does it mean something else, or is it bugged?
I think 300% is the default. The original likely used to say this, but the devs may have changed the tooltip to not tell us about it.