Rick - Pretty much all of the main rhythms were cut through a combination of a 70s JMP 100 watt and Bogner Uberschall. The JMP was through a Marshall cab with celestions and the Uberschall with a Bogner cab. Each cab was mic'd with a combination of royer 121 and josephson e22s. The 121s went to Great River Me-1NVs and the josephsons to neve 1272s. I think on pretty much every song we used an AC30 CC for a cleaner, bright sound on the choruses. If I remember correctly we only used two guitars the entire time: Martin's Gibson Tom DeLonge custom shop and my Gibson '58 LP custom shop. We may have used a Fender '52 custom but I don't remember. But aside from the gear, a huge part of the sound is how Martin tunes his guitars. It's usually open D a half-step down. He plays a lot of big, chimey parts that way. Compare it to the ATL record which was pretty much recorded the same way. Just goes to show that it's mostly about the player.
Also, TLA mixed all of BLG and I know he did the two songs I did on ATL - Lost In Stereo and Hello, Brooklyn plus the first single which was Weightless (I think?)