Complex sentence: As they are a bit more organized than orks, they are often used to maintain warmachines and artillery, which work is considered by orks as bad, because it prevents them from being in the heart of the battle.
Split into simpler sentences: As they are a bit more organized than orks, they are often used to maintain warmachines and artillery. Such work is considered by orks as bad, because it prevents them from being in the heart of the battle.