:

: (Watch the end...)

Looks like it'll be on the existing Warzone maps, probably customized the way they are during Warzone Assault. Could be fun.

: Also, some hints at the next phase of post-launch content out to the summer:
: http://news.xbox.com/2016/02/24/new-halo-5-guardians-free-content-detailed-as-hammer-storm-launches-today/?utm_source=dlvr.it&utm_medium=twitter

Wonder if the Reach teaser image implies that iconic Reach content (such as Falcons, Revenant, Plasma Launcher... Invasion?)
More free stuff is looking good. Microtransaction naysayers suffer yet another blow...