The game opens in the year 2557; three years after Halo: Spartan Assault. Roland informs the Spartan that ONI has just granted the spartan access to highly classified information from the Battle of Mombasa; because of this, in the simulation, he will simulate the actions of an ODST squad sent to secure a Forerunner artifact called the Conduit; for the purposes of the simulation, the ODSTs are replaced by a single Spartan-IV in War Master armor.
You can blow up the Shade Turrets with the Machine Gun Turret. For the one on the left and top of the map, use the top Machine Gun Turret. For the one on the right you can use either one. I had to get off the turret to trigger the \"other spartan\" to get on the Hornet, but I just used a Rocket Launcher, which is to the left of the top turret, and Overshields to get close enough to make him run. As soon as he's running towards you, turn around and get ready to get on the Hornet. As soon as you get on, the mission will end. 781b155fdc