We have a Halo 4 thread, may as well. We can move these tothe Xbox 360 forums.

http://halo.xbox.com/en-us/news/head...-edition/59856

Frankie confirms some things related to multiplayer and graphics,

Maps:
-Beaver Creek
-Damnation
-

For example, the Library is still scary, eerie, dangerous – but now, with some clever use of textures and colors and lighting, it’s a bit easier to navigate. There are visual cues to orient yourself by, as you battle the bad guys who now inhabit that space.
I heard about a firefight map too, that could mean flood!