The Mass Effect 3: Resurgence Pack is a free multiplayer expansion for Mass Effect 3 that adds two new maps (Firebase Condor and Firebase Hydra), six new playable characters (including Asari Justicar, Krogan Battlemaster, Batarian Soldier, Batarian Sentinel, Geth Engineer, and Geth Infiltrator), three new weapons (Striker Assault Rifle, Kishock Harpoon Gun, and Geth Plasma SMG), and new consumables like Strength Enhancer and Targeting VI. These items can be unlocked through in-game reinforcement packs purchased with in-game credits.