Who is Barry Burton from Caliban Cove and what is their importance?

Barry Burton is the captain of the Raccoon City S.T.A.R.S. He is tall and muscular. He contacts David for help after the Spencer mansion fiasco, but he stay in Raccoon City with Jill and Chris while Rebecca goes to Caliban Cove with David in order to contact other S.T.A.R.S. for help and to learn about the local police's involvement with Umbrella. Barry sent his wife and kids away from Raccoon City for safety, and he also sends the Philadelphia S.T.A.R.S. to Caliban Cove to rescue David and Rebecca.