You follow the stranger's signal to Venus. Run to the sparrow signal station to activate your sparrow. Become a doctor and vaccinate the locals with a healthy injection of bullets. Ride your sparrow like a bawss to the courtyard. This is your first fight with the Geth..Uh I mean Vex. They port in through a dark grey cloud so stay away from the cloud and aim for the white stone in their stomachs. DO NOT SHOOT THE HEAD! If you shoot off thier heads they disconnect from the hive mind and charge you. Do some basic math by adding bullets and subtracting life and remeber to keep moving.