Complex sentence: Due to historically having a much smaller industrial base compared to the other states; so instead of each manufacturer producing products that specialize in specific niches, produce units that are versatile and are support each other in combat conditions in variable situations.
Split into simpler sentences: Due to historically having a much smaller industrial base compared to the other states; so instead of each manufacturer instead of producing products that specialize in specific niches. Instead produce units that are versatile and are support each other in combat conditions in variable situations.