Thanks to 343 Industries and @HaloWaypoint I won early access to the Castle Map Pack for Halo 4! So I decided to make a walkthrough giving you all a preview of all three maps: Daybreak, Perdition, and Outcast.
Hopefully you enjoy and find this video helpful in making your decision to purchase the map pack.
Castle Map Pack costs 800 Microsoft points or is free to War Games Map Pass owners
– Chief Landless