Complex sentence: Unlike its predecessor, "Revenge of the Fallen" features a hub-like, non-linear mission progression; allowing the player to choose what missions they would like to accomplish and where in order to further drive the story.
Split into simpler sentences: Unlike its predecessor, "Revenge of the Fallen" features a hub-like, non-linear mission progression. This allows the player to choose what missions they would like to accomplish and where in order to further drive the story.