Complex sentence: Brendan Doyle used the armor later in the service of one Daniel Steyr who wanted to obtain Spider-man's webbing so that he could create better armor for law enforcement and the military.
Split into simpler sentences: Brendan Doyle used the armor later in the service of one Daniel Steyr. Steyr wanted to obtain Spider-man's webbing so that he could create better armor for law enforcement and the military.