Complex sentence: Realizing that Tao was far too dangerous to be allowed to operate unchecked, he used his connections to regain his post as the Director of Operations of I.O. He assigned agent Holden Carver to infiltrate the Syndicate.
Split into simpler sentences: Realizing that Tao was far too dangerous to be allowed to operate unchecked. He used his connections to regain his post as the Director of Operations of I.O. He assigned agent Holden Carver to infiltrate the Syndicate.