KN1GHTMARE
Former Moderator
“Halo: Spartan Assault” for Xbox One and Xbox 360 will pit gamers in a galactic-scale war against a persistent and overwhelming enemy from long ago – the Flood. Watch each other’s backs (literally) in the action-packed online Co-op multiplayer mode, and go in strong with an expanded arsenal of weapons at your disposal.2
With over 30 stimulating missions at your fingertips, play longer than ever with the all-new online Co-op mode and the Operation Hydra expansion that delivered an action-packed addition to the single player campaign. “Halo: Spartan Assault” will be available this December on Xbox One and Xbox 3601.

Halo: Spartan Assault Announce Trailer
Available only for Windows 8 and Windows Phone 8, "Halo: Spartan Assault" is a new top-down action shooter that brings a "Halo" video game to touch-based dev...

I guess this could be good, but among the many other games coming this holiday I can see this not making much of an impact. On a personal scale this won't be on my radar at all, but I can see it being useful if you spend all your money on the console itself. Small and cheap games like this may get you to Christmas where hopefully you'll be gifted some proper XB1 games.
via Xbox Wire