Complex sentence: In this role they frequently became involved in firefights with enemy soldiers on boats and on the shore, were used to insert and extract Navy SEAL teams, and employed by the United States Army's 458th Transportation Company, known as the 458th Seatigers.
Split into simpler sentences: In this role they frequently became involved in firefights with enemy soldiers on boats and on the shore. They were also employed by the United States Army's 458th Transportation Company, known as the 458th Seatigers.