Mass Effect 3 Multiplayer/Weekend Events

In Mass Effect 3's multiplayer mode, BioWare holds special Weekend Events which offer exclusive rewards. These events take place during the weekends (currently occurring every other weekend) from 5:00 pm PST on Friday, to 5:00 am PST the following Monday. The reward for participating varies from additional character experience for the event's duration or item packs. For completing the objectives for certain events, individual players can receive a Commendation Pack, and the community can receive a Victory Pack. However, if the community fails to complete a weekend event, they will suffer negative effects during the next event.

Participation
Initially, the weekend challenge events were only available on the PC and the Xbox 360 as Sony did not allow such events on the Playstation 3. Beginning with Operation Exorcist on April 27, 2012, BioWare announced that weekend challenge events would be made available across all three platforms from then on.

In order to participate in weekend challenges, ensure that the "Upload Gameplay Feedback" is set to "on" in the online options menu.

Other Events
These events do not feature objectives or reward Commendation or Victory Packs, but offer other reasons to participate, such as extra experience for characters.