The latest issue of Game Informer has, as promised, fleshed out detail on Halo 3: Recon, revealing the add-on as an open-world shooter with flashback story-telling.
On the ground you've got new equipment, such as a PDA to set waypoints on a wireframe map, and you're left to explore the city in an order that you wish.
"The reason we chose the ODST is it's absolutely a character that we've had ideas about how to develop and put more front a center in the Halo games," Bungie creative director, Joseph Staten explains to GI.
The goal is to find and investigate the last known locations of your four ODST team mates, using the new 'Visual Mode', which as shown in the debut trailer highlights enemies an items with a hi-tech neon glow, to path your way though the moon-clad metropolis.
Once you reach one of the last-known waypoints of your four teammates you'll find a crime scene - such as a sniper rifle hanging from a street light - and enter a Lost-stlye flashback to earlier that day, where you'll control the squad member for an entire level.
Through the 30 minute flashback, which is said to play more like a traditional, linear Halo level, you'll discover the fate your teammate and unravel the mystery of what went on in New Mombasa.
Plenty more through there. Bungie's last Halo trilogy entry releases in the back half of next year.