Mass Effect 3 N7 Bounty Weekend - Operation Vigilance Underway

The war for Earth has begun, decide how it ends
Operation Vigilance, another action-packed Multiplayer Weekend for Mass Effect 3, is running from September 7th to September 9th, BioWare announced. Word is: "Unexpected attacks have taken out several squads and damaged vital Alliance equipment. We will deploy drones to repair damage and investigate the nature of these attacks."
You must rally your allies for this Weekend with the following challenges: Allied Goal - complete 250,000 escort missions on any difficulty - all players awarded a Victory Pack; Squad Goal - complete up to and including wave 10 on any difficulty without using a consumable (medi-gel, ammo, Ops pack or Cobra missile launcher) - all squad members awarded a Commendation Pack.