Complex sentence: As such, he has acted as the organization's press manager, public relations lead, publications manager, and Webmaster, and has also participated in mission-critical technical projects, such as leading Project HighFire's documentation.
Split into simpler sentences: As such, he is the organization's press manager, public relations lead, publications manager, and Webmaster. He also participates in mission-critical technical projects, such as leading Project HIGHFIRE's documentation.