January 21st 2013 9:25 am PT
“Scattered” can be found by starting up Halo 4 and then heading to Infinity > Spartan Ops> Play Chapters > Episode 6.
Note: This is a free download. Add it to your download queue here.
PLUS: Matchmaking now has a “Community Forge” Playlist which contains smaller community created maps. Also available are two new Specializations: Pioneer and Pathfinder.