If we're going to be doing stealth objectives for lich missions on on Corpus tilesets now, something needs to be done about enemies becoming alerted by the turrets and cameras distributed throughout the tileset. No one likes sneaking invisibly into a vault only for the Grineer guarding it to immediately panic and hit the alarm because he saw an inactive turret on the ceiling. Maybe change the faction on the turrets/cameras to Grineer or something.