It's official. The "Rebellion Pack" multiplayer DLC for Mass Effect 3, including new "Firebase Jade" and "Firebase Goddess" environments, new Quarian, Vorcha, and Phoenix classes, and three new weapons, will be released next week. It was first pseudo-announced by Sony Hong Kong, but the listing was then pulled; today, EA finally confirmed the DLC.

If you'd like to join the Rebellion, you'll be able to do so May 29 on PC and Xbox Live worldwide and on PSN in North America; European PSN owners will be strategically deployed one day later. It's free for Online Pass owners (so if you don't have the Online Pass, it's $10 for that, and then the pack is free.)