From all I've heard, you'll get loot from killing enemy groups occasionally, but is this the only way? We know we'll find Thorn in Charlemagne's vault, but does this just mean we'll fight a large group of enemies in it to get the weapon? Bungie said they'll reward exploration, so can we expect to look for loot like we did skulls? I'd love to get loot by doing a puzzle like how we did with the IWHBYD skull in Halo 3, or finding it out of the way like Halo 3's Thunderstorm skull, and of course, having it masterfully hidden like just about every skull in Halo 2. If anyone knows if Bungie plans on doing this or something similar, I'd love to know.