I had a great pleasure working for the second time on Halo Waypoint for the Fall 2012 update in collaboration with 343i and Behaviour Interactive.
My role on this project was as an Art Director and UX Designer overlooking panel treatments, screen transitions animations, background treatment and panel select animations and loading animations. 
Panel content and layout was designed by 343i. The interface was implemented using Microsoft's XUI.
This quick little edit from a marketing video released by 343i promoting the Halo Waypoint Fall 2012 update.