Complex sentence: Through compartmentalization and the redundancy of key systems, any damage done to the ship outside this armored box would likely be survivable, and as long as those systems within the box remained intact, the ship could continue to fight.
Split into simpler sentences: Through compartmentalization and the redundancy of key systems, any damage done to the ship outside this armored box would likely be survivable. As long as those systems within the box remained intact, the ship could continue to fight.