Complex sentence: This has been driven by a hundred-fold increase in the range of artillery guns which itself is the result of the development of rifled cannons, improvements in propellants, better communications and techical improvements in gunnery computational abilities.
Split into simpler sentences: This has been driven by s hundred-fold increase in the range of artillery guns. This dramatic range increase has been driven by the development of rifled cannons, improvements in propellants, better communications and techical improvements in gunnery computational abilities.