The story campaign is a mild disappointment but the multiplayer is a bold reinvention of the Halo experience, that should keep the series fresh for years to come.
The new movement system is excellent, and works well in all three modes; Arena mode is the most fun Halo has been in years and Warzone is also very good
In construction the campaign mode is strictly average, including the weak story; Small number of new vehicles and weapons; No offline multiplayer