Complex sentence: 'Gage' is a supporting driver,'Preach' is a gunner'Ashley' who is an agile jumper and Sarah who drives a helecopter they each help out in many of the missions during the game.
Split into simpler sentences: 'Gage' is a supporting driver,'Preach' is a gunner and'Ashley' who is an agile jumper. They each help out in many of the missions during the game.