Naturally, that content's found itself out of the magazine and onto the Internet, courtesy of NeoGAF.
Apparently the game will run at a silky smooth 60 frames per second, with competitive and co-operative multiplayer for up to eight players. The game will be tough apparently, running against earlier reports that suggested the game would be more accessible than previous entries.
Weapons will upgrade over time as opposed to being ranked up through stores, and the game "may" end up featuring support for the PlayStation Move — though nothing's been confirmed yet.
Obviously there's more information in Official PlayStation Magazine. You should probably buy it if you're eager for more details.