Mass Effect 3's Operation: Resurgence
This weekend, April 13th through April 16th, Mass Effect will be having another bounty weekend. To participate, players will need to have downloaded the free Resurgence multiplayer pack.
From Bioware's blog:
"Operation BEACHHEAD eased the pressure on allied planets and freed up conventional forces that were being hammered by the Reapers. With these reinforcements, the allies can use RESURGENCE to target more critical infrastructure.