Location: Perseus Veil -> Tikkun - > Planet Rannoch
Mission: Rannoch: Geth Fighter Squadrons (Shut down geth server)
Achievement missable: Yes, if you destroy the Reaper Base on Rannoch (8. Priority Mission Rannoch), the Mission is gone
Acquisition: This mission is acquired after completing Priority: Geth Dreadnought
You get the Achievement for completing this Quest, also get the Geth/Geth Prime Platoon (+60 War Asset).