Operation ONSLAUGHT details directly from BioWare’s blog below:

Date: December 14th – December 16th

Event Description: The Reapers are taking advantage of our forces being spread thin and are making a push for Menae. Alliance Intelligence predicts that the Reapers are luring us into committing large-scale defenses to the moon that they will wipe out. Our counter-strategy is to insert small, stealthy units to conduct disruptive offensives and hold the firebase during their hopefully weakened attacks.

Individual Goal: Earn the Silver Survival Medal (5 Waves Survived) on Firebase Condor on any difficulty. Extraction is not required.

Reward: Commendation Pack

Not a big fan of Condor myself… Are you guys? Anyway, good luck with this week’s challenge, and see you on the battlefield.

Check this link to find out how much time you have before the operation starts: http://blog.bioware.com/2012/12/13/operation-alamo/