Complex sentence: Serco have their International Fire Training Centre based in a remote corner of the airport, they have a number of retired aircraft fuselages as well as metal mock-ups used for training aviation fire-fighters from across the world.
Split into simpler sentences: Serco have their International Fire Training Centre based in a remote corner of the airport. They have a number of retired aircraft fuselages as well as metal mock-ups used for training aviation fire-fighters from across the world.