We found Mass Effect 3's multiplayer to be enjoyable enough when we reviewed it earlier this year, but the wave-based survival mode and its limited supply of secondary objectives and races weren't enough to topple the likes of Gears of War 3's Hoard mode, which features much deeper gameplay. Perhaps the upcoming Rebellion Pack expansion will be enough to inject some new life into the game's online modes, though. The pack will include an entirely new playable race in the form of the Vorcha. This alone is exciting news, as each race has their own talents and specialties.

New characters will also be available for play. The Cerberus Defector role will cast you as, you guessed it, a defected Cerberus soldier, while the Male Quarian role is... well, that's pretty self-explanatory too. Still, more customization options are always appreciated. Also appreciated is the extra variety that will be coming to the objective-based waves with the addition of a new objective called Retrieve Mode, in which you must seek out an object in the environment and bring it back to a set point in the level.

With all of these new additions, the Rebellion Pack is sure to please fans of Mass Effect 3's multiplayer and maybe even bring back a few who left for greener pastures. And the best part of all? The whole thing is totally free.