I need a bit of help. I already completed the science lab tower quest, already met up with Mystera and she led me to where Linda is. Where do I go from there?
Edit: Reread your question, and changed my answer to fit it
Go to the military base, and Mystera will guide you to the next location. There will be hidden passages to get to the buttons to get out once you rescued Linda, and a few to get to her in the first place. Try and map out the rooms and walk alongside the walls to find the hidden passage to the rooms.