Original sentence: Unlike its predecessor, Halo 2 allows players to compete with each other via the Xbox Live online service, in addition to the original's support for split-screen and System Link multiplayer
Edited sentence: Multiplayer just might be the best part of Halo 2, and unlike its predecessor, Halo 2 allows players to compete with each other via the Xbox Live online service, in addition to the original's support for split-screen and System Link multiplayer