"Offline, segment required", where do I get those segments?
Solution 1:
Have you started the tutorial mission, Vor's prize? If you have followed the steps, Mariana, Earth should be a rescue mission as opposed to Sabotage.
This is the issue. The tutorial mission must be followed step by step. So you cannot get the Mods segment of the Liset before completing the necessary steps beforehand. So you must first find the Communications module first.