I cant seem to progress on Bury The Truth once you get on the large elevator after you send coordinates to send the ship into the sun and once the Helghast spy tries to take off with Massar. The elevator stops and you get ambushed by about 4 helghast, plus those tiny spider drones. Once your done with that though, the only way forward seems to be the elevator shaft, but it looks theres supposed to be an elevator there that isnt. Anyone know what to do????