There is more info from the leaked IGN video which still needs to be added. Here is a basic summary:
The map is in a figure-eight or an infintiy shape much like the PC edition of Halo: CE. There are several man canons that take you towards the center of the map.
When asked about banshees they developer said that they are not in the map but could be added, I don't know if in the future or in forge, but it's probably forge.
There are several caves located in the mountains for infantry.
Useful armor abilities are the jetpack and active camoflauge.
- Two Warthogs
- Four Ghosts
- Covenant Carbine
- Projectile Detonator
- Map was leaked by IGN
That's all for now.